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Wakefield C, Russell-Goldman E. Androgen Receptor Immunohistochemistry is Superior to PRAME for the Differentiation of Sebaceous Carcinoma From Primary Cutaneous Basaloid Mimics. Am J Dermatopathol 2024; 46:195-203. [PMID: 38488347 DOI: 10.1097/dad.0000000000002496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
ABSTRACT Cutaneous sebaceous neoplasia comprises a spectrum of disease ranging from benign adenomas to malignant carcinomas. The hallmark of these lesions is sebaceous differentiation. However, poorly-differentiated sebaceous carcinoma (SC), which lacks significant overt sebaceous differentiation, can show morphologic overlap with a variety of other basaloid cutaneous neoplasms. The accurate classification of SC is essential not only for diagnosis, but also because of the potential association with Muir-Torre syndrome. Androgen receptor (AR) is a sensitive, but not entirely specific immunohistochemical marker that has been used for the diagnosis of SC. PReferentially expressed Antigen in MElanoma (PRAME) demonstrates strong cytoplasmic labeling of mature sebocytes and has been reported to be expressed in a variety of sebaceous neoplasms, including in the basaloid cell component. Therefore, we sought to compare the diagnostic use of cytoplasmic PRAME expression with that of AR for the distinction of SC from a cohort of basaloid cutaneous mimics; namely basal cell carcinoma, basaloid squamous cell carcinoma, pilomatricoma, cutaneous lymphadenoma, and extra-mammary Paget disease. We report that cytoplasmic PRAME expression is uncommon in poorly differentiated SC, and although specific, it shows very low sensitivity (22%). In contrast, AR was moderately sensitive (66%) and highly specific (92%) for the distinction of SC from basaloid mimics. These attributes, in addition to the nuclear expression of AR in the sebocytic and basaloid components of SC, suggest that AR is superior to PRAME for the diagnosis of SC.
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Affiliation(s)
- Craig Wakefield
- Pathologists, Department of Pathology, Brigham and Women's Hospital, Boston, MA
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2
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Choi M, Han A, Eichenfield LF. Successful topical minoxidil treatment for hair density and length in trichorhinophalangeal syndrome type 1. Pediatr Dermatol 2024; 41:366-368. [PMID: 38193387 DOI: 10.1111/pde.15509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 12/12/2023] [Indexed: 01/10/2024]
Abstract
A 9-year-old girl presented with slow hair growth and hair thinning since birth. Additionally, she had short stature and abnormally short fingers; genetic testing confirmed the diagnosis of trichorhinophalangeal syndrome (TRPS) type 1. After 4 months of topical minoxidil treatment, hair density and length significantly improved diffusely throughout the scalp without evidence of hypertrichosis. This case underscores the therapeutic potential of topical minoxidil for TRPS, paving the way for improved patient quality of life.
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Affiliation(s)
- Mira Choi
- Division of Pediatric and Adolescent Dermatology, Rady Children's Hospital, San Diego, California, USA
- Department of Dermatology, Ilsan Paik Hospital, Inje University College of Medicine, Goyang, Korea
| | - Allison Han
- Division of Pediatric and Adolescent Dermatology, Rady Children's Hospital, San Diego, California, USA
| | - Lawrence F Eichenfield
- Division of Pediatric and Adolescent Dermatology, Rady Children's Hospital, San Diego, California, USA
- Department of Dermatology, University of California San Diego School of Medicine, San Diego, California, USA
- Department of Pediatrics, University of California San Diego School of Medicine, San Diego, California, USA
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3
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Salem A, Wu Y, Albarracin CT, Middleton LP, Kalhor N, Peng Y, Huang X, Aung PP, Chen H, Sahin AA, Ding Q. A Comparative Evaluation of TRPS1 and GATA3 in adenoid cystic, secretory, and acinic cell carcinomas of the breast and salivary gland. Hum Pathol 2024; 145:42-47. [PMID: 38262580 DOI: 10.1016/j.humpath.2024.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 01/06/2024] [Accepted: 01/12/2024] [Indexed: 01/25/2024]
Abstract
GATA3 is the most used marker to determine tumors' breast origin, but its diagnostic value in triple-negative breast cancer (TNBC) is limited. The newly identified TRPS1 is highly sensitive and specific for breast carcinoma, especially TNBC. Here, we compared the utility of TRPS1 and GATA3 expression in a subset of salivary gland-type breast tumors (including adenoid cystic, acinic cell, and secretory carcinomas [AdCC, ACC, and SC, respectively]), and we compared TRPS1 and GATA3 expression of such tumors with head and neck (H&N) and AdCC of upper respiratory tumors. TRPS1 was strongly expressed in basaloid TNBC and AdCCs with solid components, including 100 % of mixed and solid breast AdCCs. However, TRPS1 was positive in only 50 % cribriform AdCCs. Expression patterns of TRPS1 in H&N and upper respiratory AdCC were similar. TRPS1 was positive in 30 % of H&N cribriform AdCCs but was strongly expressed in mixed AdCC (67 %) and solid AdCC (100 %). In the upper respiratory AdCCs, TRPS1 was positive in 58.4 % of cribriform AdCCs and positive in 100 % of AdCCs with solid components. On the contrary, GATA3 was negative in predominant AdCCs of the breast, H&N, and upper respiratory tract. These data show that GATA3 and TRPS1 expression varies AdCCs. In addition, TRPS1 and GATA3 expression patterns were similar SC and ACC of breast and H&N. Both markers were positive in SC and negative in ACC. Therefore, TRPS1 and GATA3 cannot be used to differentiate salivary gland-type carcinomas of breast origin from those of upper respiratory or H&N origin.
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Affiliation(s)
- Alireza Salem
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | - Yun Wu
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Constance T Albarracin
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Lavinia P Middleton
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Neda Kalhor
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Yan Peng
- Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiao Huang
- Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Phyu P Aung
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Hui Chen
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Aysegul A Sahin
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Qingqing Ding
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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4
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Krawczyk-Wołoszyn K, Roczkowski D, Reich A. Evaluation of Surface Structure and Morphological Phenomena of Caucasian Virgin Hair with Atomic Force Microscopy. Medicina (Kaunas) 2024; 60:297. [PMID: 38399584 PMCID: PMC10890343 DOI: 10.3390/medicina60020297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 02/03/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024]
Abstract
Background and Objectives: Atomic force microscopy (AFM) as a type of scanning microscopy (SPM), which has a resolution of fractions of a nanometer on the atomic scale, is widely used in materials science. To date, research using AFM in medicine has focused on neurodegenerative diseases, osteoporosis, cancer tumors, cell receptors, proteins and the DNA mismatch repair (MMR) system. Only a few small studies of hair imaging have been conducted, mostly in biotechnology or cosmetology. Thanks to the possibilities offered by AFM imaging, dermatologists can non-invasively assess the condition of hair and its possible disorders. Our goal was to capture images and microscopically analyze morphological changes in the surface of healthy hair. Materials and Methods: In this study, three to five hairs were collected from each person. Each hair was examined at nine locations (0.5; 1.0; 1.5; 2.0; 3.5; 4.5; 5.5; 6.5 and 7.0 cm from the root). At least 4 images (4-10 images) were taken at each of the 9 locations. A total of 496 photos were taken and analyzed. Metric measurements of hair scales, such as apparent length, width and scale step height, were taken. Results: This publication presents the changes occurring in hair during the natural delamination process. In addition, morphoological changes visualized on the surface of healthy hair (pitting, oval indentations, rod-shaped macro-fibrillar elements, globules, scratches, wavy edge) are presented. A quantitative analysis of the structures found was carried out. Conclusions: The findings of this study can be used in further research and work related to the subject of human hair. They can serve as a reference for research on scalp and hair diseases, as well as hair care.
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Affiliation(s)
- Karolina Krawczyk-Wołoszyn
- Doctoral School, University of Rzeszow, 35-959 Rzeszów, Poland;
- Department of Dermatology, Institute of Medical Sciences, Medical College of the Rzeszow University, 35-959 Rzeszów, Poland;
| | - Damian Roczkowski
- Department of Dermatology, Institute of Medical Sciences, Medical College of the Rzeszow University, 35-959 Rzeszów, Poland;
| | - Adam Reich
- Department of Dermatology, Institute of Medical Sciences, Medical College of the Rzeszow University, 35-959 Rzeszów, Poland;
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5
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Wilk M, Zelger BG, Zelger B. Tumor of follicular infundibulum - reappraisal in a series of 28 patients with critical review of the literature. J Dtsch Dermatol Ges 2024; 22:223-235. [PMID: 38332423 DOI: 10.1111/ddg.15296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 09/30/2023] [Indexed: 02/10/2024]
Abstract
BACKGROUND AND OBJECTIVES Tumor of follicular infundibulum (TFI) has been described as a neoplasm - isolated and multiple - and in association with other lesions. Its histopathologic definition is controversial. PATIENTS AND METHODS We present a histopathologically analyzed series of 28 patients with TFI features. This has been supplemented by a search in MEDLINE on the literature on this subject. The corresponding figures given in these articles have been discussed and analyzed. RESULTS Patients comprised 16 women and twelve men. TFI features were seen in five patients with nevus sebaceous, two trichofolliculomas, one dilated pore Winer, eight viral warts, one dermatofibroma, six seborrheic keratoses, three actinic keratoses, one invasive squamous cell carcinoma, and one basal cell carcinoma in association with a squamous cell carcinoma/actinic keratosis. After study of the literature especially of solitary cases of TFI, we interpret such cases mostly as variants of seborrheic keratoses with variable degree of infundibular, isthmic and/or sebaceous differentiation with or without regression. CONCLUSIONS We regard TFI as an epithelial growth pattern which may occur in hamartomatous, inflammatory, infectious, reactive, or neoplastic conditions, in most solitary forms likely best classified within the histopathological spectrum of seborrheic keratoses.
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Affiliation(s)
- Michael Wilk
- Private Dermatohistological Laboratory, Nuernberg, Germany
| | - Bettina G Zelger
- Institute of Pathology, Medical University Innsbruck, Innsbruck, Austria
| | - Bernhard Zelger
- Private Dermatohistopathological Laboratory Zelger, Innsbruck, Austria
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6
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Haneke E, Happle R. What is in a name-Perifollicular fibroma or fibrofolliculoma? J Cutan Pathol 2024; 51:170-175. [PMID: 37649357 DOI: 10.1111/cup.14522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/01/2023]
Abstract
So far, confusion exists regarding the question of whether hereditary perifollicular fibromas and fibrofolliculomas can be distinguished from each other. Here, histopathological arguments are presented to clarify this terminological problem. In 1977, Birt et al. described a large kindred affected with hereditary multiple "fibrofolliculomas," which they thought were "a hitherto unrecognized pilar hamartoma," but they never claimed the fibrofolliculomas were part of a syndrome. A careful microscopic comparison shows, however, that the tumors are clinically and histopathologically identical to perifollicular fibromas, as first described by Burnier and Rejšek in 1925. Their familial occurrence was discovered in 1971 by Civatte and Le Tréguilly. Before 1977, the term "perifollicular fibroma" was used for these skin tumors. By contrast, Hornstein and Knickenberg described in 1975 perifollicular fibromas as a cutaneous marker of a syndrome characterized by a predisposition to colon cancer and pneumothorax. Later, two French groups erroneously proposed the term "Birt-Hogg-Dubé syndrome" to describe the co-occurrence of fibrofolliculomas, trichodiscomas, and acrochordons, which was contrary to what Birt et al. had in mind. Hence, today, we should discriminate between the hereditary nonsyndromic perifollicular fibromas, as documented by Civatte and Le Tréguilly and later by Birt et al., and the syndromic perifollicular fibromas, as delineated by Hornstein and Knickenberg.
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Affiliation(s)
- Eckart Haneke
- Department of Dermatology, Inselspital University of Berne, Bern, Switzerland
- Dermatologic Practice Dermaticum, Freiburg, Germany
- Centro de Dermatología Epidermis, Instituto CUF, Senhora da Hora, Matosinhos, Grande Porto, Portugal
- Department of Dermatology, University Hospital of Ghent, Ghent, Belgium
| | - Rudolf Happle
- Department of Dermatology, Medical Center-University of Freiburg, Germany
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7
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Scott TG, Sathyan KM, Gioeli D, Guertin MJ. TRPS1 modulates chromatin accessibility to regulate estrogen receptor alpha (ER) binding and ER target gene expression in luminal breast cancer cells. PLoS Genet 2024; 20:e1011159. [PMID: 38377146 PMCID: PMC10906895 DOI: 10.1371/journal.pgen.1011159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 03/01/2024] [Accepted: 01/30/2024] [Indexed: 02/22/2024] Open
Abstract
Common genetic variants in the repressive GATA-family transcription factor (TF) TRPS1 locus are associated with breast cancer risk, and luminal breast cancer cell lines are particularly sensitive to TRPS1 knockout. We introduced an inducible degron tag into the native TRPS1 locus within a luminal breast cancer cell line to identify the direct targets of TRPS1 and determine how TRPS1 mechanistically regulates gene expression. We acutely deplete over 80 percent of TRPS1 from chromatin within 30 minutes of inducing degradation. We find that TRPS1 regulates transcription of hundreds of genes, including those related to estrogen signaling. TRPS1 directly regulates chromatin structure, which causes estrogen receptor alpha (ER) to redistribute in the genome. ER redistribution leads to both repression and activation of dozens of ER target genes. Downstream from these primary effects, TRPS1 depletion represses cell cycle-related gene sets and reduces cell doubling rate. Finally, we show that high TRPS1 activity, calculated using a gene expression signature defined by primary TRPS1-regulated genes, is associated with worse breast cancer patient prognosis. Taken together, these data suggest a model in which TRPS1 modulates the genomic distribution of ER, both activating and repressing transcription of genes related to cancer cell fitness.
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Affiliation(s)
- Thomas G. Scott
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia, United States of America
| | - Kizhakke Mattada Sathyan
- Center for Cell Analysis and Modeling, University of Connecticut, Farmington, Connecticut, United States of America
- Department of Genetics and Genome Sciences, University of Connecticut, Farmington, Connecticut, United States of America
| | - Daniel Gioeli
- Department of Microbiology, Immunology, and Cancer, University of Virginia, Charlottesville, Virginia, United States of America
- Cancer Center Member, University of Virginia, Charlottesville, Virginia, United States of America
| | - Michael J. Guertin
- Center for Cell Analysis and Modeling, University of Connecticut, Farmington, Connecticut, United States of America
- Department of Genetics and Genome Sciences, University of Connecticut, Farmington, Connecticut, United States of America
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8
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Wang J, Fiori PL, Capobianco G, Carru C, Chen Z. Gut microbiota and polycystic ovary syndrome, focus on genetic associations: a bidirectional Mendelian randomization study. Front Endocrinol (Lausanne) 2024; 15:1275419. [PMID: 38318294 PMCID: PMC10838976 DOI: 10.3389/fendo.2024.1275419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 01/09/2024] [Indexed: 02/07/2024] Open
Abstract
Background The contribution of gut microbiota to the pathogenesis of polycystic ovary syndrome (PCOS) is controversial. The causal relationship to this question is worth an in-depth comprehensive of known single nucleotide polymorphisms associated with gut microbiota. Methods We conducted bidirectional Mendelian randomization (MR) utilizing instrumental variables associated with gut microbiota (N = 18,340) from MiBioGen GWAS to assess their impact on PCOS risk in the FinnGen GWAS (27,943 PCOS cases and 162,936 controls). Two-sample MR using inverse variance weighting (IVW) was undertaken, followed by the weighted median, weighted mode, and MR-Egger regression. In a subsample, we replicated our findings using the meta-analysis PCOS consortium (10,074 cases and 103,164 controls) from European ancestry. Results IVWMR results suggested that six gut microbiota were causally associated with PCOS features. After adjusting BMI, SHBG, fasting insulin, testosterone, and alcohol intake frequency, the effect sizes were significantly reduced. Reverse MR analysis revealed that the effects of PCOS features on 13 gut microbiota no longer remained significant after sensitivity analysis and Bonferroni corrections. MR replication analysis was consistent and the results suggest that gut microbiota was likely not an independent cause of PCOS. Conclusion Our findings did not support the causal relationships between the gut microbiota and PCOS features at the genetic level. More comprehensive genome-wide association studies of the gut microbiota and PCOS are warranted to confirm their genetic relationship. Declaration This study contains 3533 words, 0 tables, and six figures in the text as well as night supplementary files and 0 supplementary figures in the Supplementary material.
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Affiliation(s)
- Jing Wang
- Department of Obstetrics and Gynecology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Pier Luigi Fiori
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | | | - Ciriaco Carru
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Zhichao Chen
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
- Department of Cardiology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
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9
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Mitra A, Schulman JM. Expression of Ber-EP4 and CD34 can distinguish clear-cell basal cell carcinoma from trichilemmoma: A case series. Indian J Dermatol Venereol Leprol 2024; 90:118-120. [PMID: 37317725 DOI: 10.25259/ijdvl_468_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 03/05/2023] [Indexed: 06/16/2023]
Affiliation(s)
- Anupam Mitra
- Department of Pathology, University of California Davis, Sacramento, United States
| | - Joshua M Schulman
- Department of Dermatology, Veteran Affairs Hospital Mather & University of California Davis, Mather, CA, United States
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10
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Köhler CU, Schork K, Turewicz M, Eisenacher M, Roghmann F, Noldus J, Marcus K, Brüning T, Käfferlein HU. Use of Multiple Machine Learning Approaches for Selecting Urothelial Cancer-Specific DNA Methylation Biomarkers in Urine. Int J Mol Sci 2024; 25:738. [PMID: 38255812 PMCID: PMC10815677 DOI: 10.3390/ijms25020738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Diagnosing urothelial cancer (UCa) via invasive cystoscopy is painful, specifically in men, and can cause infection and bleeding. Because the UCa risk is higher for male patients, urinary non-invasive UCa biomarkers are highly desired to stratify men for invasive cystoscopy. We previously identified multiple DNA methylation sites in urine samples that detect UCa with a high sensitivity and specificity in men. Here, we identified the most relevant markers by employing multiple statistical approaches and machine learning (random forest, boosted trees, LASSO) using a dataset of 251 male UCa patients and 111 controls. Three CpG sites located in ALOX5, TRPS1 and an intergenic region on chromosome 16 have been concordantly selected by all approaches, and their combination in a single decision matrix for clinical use was tested based on their respective thresholds of the individual CpGs. The combination of ALOX5 and TRPS1 yielded the best overall sensitivity (61%) at a pre-set specificity of 95%. This combination exceeded both the diagnostic performance of the most sensitive bioinformatic approach and that of the best single CpG. In summary, we showed that overlap analysis of multiple statistical approaches identifies the most reliable biomarkers for UCa in a male collective. The results may assist in stratifying men for cystoscopy.
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Affiliation(s)
- Christina U. Köhler
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Ruhr University Bochum (IPA), Bürkle-de-la-Camp Platz 1, 44789 Bochum, Germany; (C.U.K.)
| | - Karin Schork
- Medizinisches Proteom-Center, Medical Faculty, Ruhr-University Bochum and Medical Proteome Analysis, Center for Protein Diagnostics (PRODI), Gesundheitscampus 4, 44081 Bochum, Germany
| | - Michael Turewicz
- Medizinisches Proteom-Center, Medical Faculty, Ruhr-University Bochum and Medical Proteome Analysis, Center for Protein Diagnostics (PRODI), Gesundheitscampus 4, 44081 Bochum, Germany
| | - Martin Eisenacher
- Medizinisches Proteom-Center, Medical Faculty, Ruhr-University Bochum and Medical Proteome Analysis, Center for Protein Diagnostics (PRODI), Gesundheitscampus 4, 44081 Bochum, Germany
| | - Florian Roghmann
- Department of Urology, Marien Hospital Herne, University Hospital of the Ruhr University Bochum, Hölkeskampring 40, 44625 Herne, Germany
| | - Joachim Noldus
- Department of Urology, Marien Hospital Herne, University Hospital of the Ruhr University Bochum, Hölkeskampring 40, 44625 Herne, Germany
| | - Katrin Marcus
- Medizinisches Proteom-Center, Medical Faculty, Ruhr-University Bochum and Medical Proteome Analysis, Center for Protein Diagnostics (PRODI), Gesundheitscampus 4, 44081 Bochum, Germany
| | - Thomas Brüning
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Ruhr University Bochum (IPA), Bürkle-de-la-Camp Platz 1, 44789 Bochum, Germany; (C.U.K.)
| | - Heiko U. Käfferlein
- Institute for Prevention and Occupational Medicine of the German Social Accident Insurance, Ruhr University Bochum (IPA), Bürkle-de-la-Camp Platz 1, 44789 Bochum, Germany; (C.U.K.)
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11
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Narayanan A. Focal Hypertrichotic Leukotrichia. J Cutan Med Surg 2024; 28:104. [PMID: 38174853 DOI: 10.1177/12034754231223949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Affiliation(s)
- Arunachalam Narayanan
- Department of Dermatology and STD, Jawaharlal Institute of Postgraduate Medical Education and Research, Gorimedu, Puducherry, India
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12
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Malik S, Singh P, Singh M, Ranga S. Cytomorphological features of syringocystadenoma papilliferum mimicking pilomatricoma at a rare location and in an unusual age group: A cytological diagnostic challenge. Diagn Cytopathol 2024; 52:E1-E6. [PMID: 37782314 DOI: 10.1002/dc.25228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/13/2023] [Accepted: 09/15/2023] [Indexed: 10/03/2023]
Abstract
Syringocystadenoma papilliferum (SCAP) is a rare, benign skin adnexal tumor of apocrine or eccrine differentiation usually occurring in the head and neck region of children. It is a difficult entity to diagnose clinically and even cytological diagnosis remains challenging due to overlapping and masquerading cyto-morphological features with other benign cutaneous adnexal tumors. Here we present, one such intriguing case of SCAP with its cytological features mimicking those of pilomatricoma. Moreover, the lesion was located at the right lower abdomen, which in itself is a rare site and its presentation was in an adult male which is an unusual age group. However, fine needle aspiration cytology still remains a very useful investigation for cutaneous tumors as it helps in differentiating benign lesions from malignant and metastatic neoplasms and therefore aids in correct treatment and follow-up of patients.
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Affiliation(s)
- Shaivy Malik
- Department of Pathology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
| | - Priyanka Singh
- Department of Pathology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
| | - Mukul Singh
- Department of Pathology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
| | - Sunil Ranga
- Department of Pathology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
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Sandhu S, Neema S, Bhatnagar A, Kishore K, Kothari R, Patil C. Dermoscopy of mudi-chood disease (hair-heat disease): A traditional hair grooming related dermatoses in South Indian women. J Eur Acad Dermatol Venereol 2024; 38:e77-e78. [PMID: 37595946 DOI: 10.1111/jdv.19438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 08/14/2023] [Indexed: 08/20/2023]
Affiliation(s)
- Sunmeet Sandhu
- Department of Dermatology, 7 Air Force Hospital, Kanpur, India
| | - Shekhar Neema
- Department of Dermatology, Base Hospital Lucknow, Lucknow, India
| | - Anuj Bhatnagar
- Department of Dermatology, Command Hospital Air Force Bangalore, Bangalore, India
| | - Karthi Kishore
- Department of Dermatology, Command Hospital Air Force Bangalore, Bangalore, India
| | - Rohit Kothari
- Department of Dermatology, Command Hospital Air Force Bangalore, Bangalore, India
| | - Chetan Patil
- Department of Dermatology, Command Hospital Air Force Bangalore, Bangalore, India
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14
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Rice X, Omar D, Goodwin BP, Adotama P. Barber Knowledge and Recommendations for Pseudofolliculitis Barbae. JAMA Dermatol 2024; 160:111-113. [PMID: 38055241 PMCID: PMC10701658 DOI: 10.1001/jamadermatol.2023.4913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/20/2023] [Indexed: 12/07/2023]
Abstract
This survey study describes an opportunity for a partnership between barbers and dermatologists to identify, evaluate, and treat pseudofolliculitis barbae in the Black male population.
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Affiliation(s)
- Xavier Rice
- Department of Dermatology, University of Texas Medical Branch, Galveston
- Division of Dermatology, Washington University in Saint Louis/Barnes Jewish Hospital, Saint Louis, Missouri
| | - Deega Omar
- Department of Dermatology, The George Washington School of Medicine and Health Sciences, Washington, DC
| | - Brandon P. Goodwin
- Department of Dermatology, University of Texas Medical Branch, Galveston
| | - Prince Adotama
- The Ronald O. Perelman Department of Dermatology, New York University Grossman School of Medicine, New York
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15
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Serrano Ortega S. Canities Subita: Two Cases Described in General and Natural History of the Indies by Fernández de Oviedo (1478-1557). Actas Dermosifiliogr 2023; 114:889-891. [PMID: 37279853 DOI: 10.1016/j.ad.2022.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 06/08/2023] Open
Affiliation(s)
- S Serrano Ortega
- Profesor Emérito, Facultad de Medicina, Universidad de Granada, Granada, España.
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16
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Serrano Ortega S. [Translated article] Canities Subita: Two Cases Described in General and Natural History of the Indies by Fernández de Oviedo (1478-1557). Actas Dermosifiliogr 2023; 114:T889-T891. [PMID: 37734544 DOI: 10.1016/j.ad.2023.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 09/23/2023] Open
Affiliation(s)
- S Serrano Ortega
- Profesor Emérito, Facultad de Medicina, Universidad de Granada, Granada, Spain.
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17
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Fidanzi C, Mori N, Bevilacqua M, Panduri S, Romanelli M, Janowska A. Trichoepithelioma and tattooing: a causal or casual relationship? Skin Res Technol 2023; 29:e13474. [PMID: 37881056 PMCID: PMC10512203 DOI: 10.1111/srt.13474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 09/12/2023] [Indexed: 10/27/2023]
Affiliation(s)
| | - Nicolò Mori
- Unit of DermatologyUniversity of PisaPisaItaly
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18
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Ross EV, Wischnack B. Use of a 755/1064 nm long pulse laser equipped with pigment meter guidance in the treatment of pseudofolliculitis barbae, vascular lesions, and epidermal pigmented lesions. Lasers Surg Med 2023; 55:709-711. [PMID: 37473427 DOI: 10.1002/lsm.23702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 06/26/2023] [Accepted: 06/27/2023] [Indexed: 07/22/2023]
Affiliation(s)
- Edward V Ross
- Division of Dermatology, Scripps Clinic, San Diego, California, USA
| | - Briana Wischnack
- Division of Dermatology, Scripps Clinic, San Diego, California, USA
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19
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Longo C, Lippolis N, Lai M, Spadafora M, Kaleci S, Condorelli AG, Lombardi M, Pampena R, Argenziano G, Nazzaro G, Scalvenzi M, Akay BN, Broganelli P, Fargnoli MC, Paoli J, Yélamos O, Pellacani G, Borsari S, Lallas A. Dermoscopic features of trichoepithelioma: A multicentre observational case-control study conducted by the International Dermoscopy Society. J Eur Acad Dermatol Venereol 2023; 37:e1253-e1255. [PMID: 37326166 DOI: 10.1111/jdv.19262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023]
Affiliation(s)
- Caterina Longo
- Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
| | - Nicola Lippolis
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
| | - Michela Lai
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Marco Spadafora
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
- Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Shaniko Kaleci
- Department of Surgery, Medicine, Dental Medicine and Morphological Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Mara Lombardi
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
| | - Riccardo Pampena
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
| | - Giuseppe Argenziano
- Department of Dermatology, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli Naples, Naples, Italy
| | - Gianluca Nazzaro
- Dermatology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | | | - Bengü Nisa Akay
- Medicine Faculty Department of Dermatology, Ankara University, Ankara, Turkey
| | - Paolo Broganelli
- Prevenzione Tumori Cutanei, Oncology Department, Città' Della Salute e della Scienza di Turin, Turin, Italy
| | - Maria Concetta Fargnoli
- Dermatology, Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
| | - John Paoli
- Department of Dermatology and Venereology at the University of Gothenburg, Gothenburg, Sweden
| | - Oriol Yélamos
- Dermatology Department, Hospital de la Santa Creu i Sant Pau, IIB SANT PAU, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Giovanni Pellacani
- Department of Dermatology and Venereology at the University of La Sapienza, Rome, Italy
| | - Stefania Borsari
- Azienda Unità Sanitaria Locale - IRCCS di Reggio Emilia, Skin Cancer Center, Reggio Emilia, Italy
| | - Aimilios Lallas
- First Department of Dermatology, Aristotle University, Thessaloniki, Greece
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20
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Guo Y, Hu Z, Chen J, Zhang J, Fan Z, Qu Q, Miao Y. Feasibility of adipose-derived therapies for hair regeneration: Insights based on signaling interplay and clinical overview. J Am Acad Dermatol 2023; 89:784-794. [PMID: 34883154 DOI: 10.1016/j.jaad.2021.11.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 09/13/2021] [Accepted: 11/30/2021] [Indexed: 11/22/2022]
Abstract
Dermal white adipose tissue (dWAT) is a dynamic component of the skin and closely interacts with the hair follicle. Interestingly, dWAT envelops the hair follicle during anagen and undergoes fluctuations in volume throughout the hair cycle. dWAT-derived extracellular vesicles can significantly regulate the hair cycle, and this provides a theoretical basis for utilizing adipose tissue as a feasible clinical strategy to treat hair loss. However, the amount and depth of the available literature are far from enough to fully elucidate the prominent role of dWAT in modulating the hair growth cycle. This review starts by investigating the hair cycle-coupled dWAT remodeling and the reciprocal signaling interplay underneath. Then, it summarizes the current literature and assesses the advantages and limitations of clinical research utilizing adipose-derived therapies for hair regeneration.
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Affiliation(s)
- Yilong Guo
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zhiqi Hu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jian Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Jiarui Zhang
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Zhexiang Fan
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China
| | - Qian Qu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital of Southern Medical University, Guangzhou, Guangdong Province, China.
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21
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Peñaloza Daguer DE, Kowalczuk A, Caviedes MP, Mazzuoccolo LD. Case for diagnosis. Unusual involvement of asymptomatic facial papular eruption: eruptive vellus hair cysts. An Bras Dermatol 2023; 98:694-696. [PMID: 37164793 PMCID: PMC10404488 DOI: 10.1016/j.abd.2022.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/02/2022] [Accepted: 08/07/2022] [Indexed: 05/12/2023] Open
Affiliation(s)
| | - Alicia Kowalczuk
- Department of Dermatology, Italian Hospital of Buenos Aires, CABA, Argentina
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22
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Miao Y, Ren W, Yang F, Li L, Wu L, Dan Shan D, Chen Z, Wang L, Wang Q, Guo L. Diagnostic value of high-frequency ultrasound (HFUS) in evaluation of subcutaneous lesions. Skin Res Technol 2023; 29:e13464. [PMID: 37753674 PMCID: PMC10493336 DOI: 10.1111/srt.13464] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND It is unknown whether high-frequency ultrasound (HFUS) can evaluate invisible subcutaneous lesions. We aimed to investigate the diagnostic value of HFUS in invisible subcutaneous lesions. METHOD Patients with invisible subcutaneous lesions were prospectively recruited from two centres. Before undergoing biopsy or surgery, each lesion was independently evaluated by two clinicians. One provides a clinical diagnosis by only clinical examination and the other provides an integrated diagnosis by combining clinical examination and HFUS information. Diagnoses were classified as correct, wrong, and indeterminate. A total of 391 lesions from 355 patients were enrolled, including 225 epidermoid cysts, 77 lipomas, 25 pilomatrixomas, 21 haemangiomas, 19 dermatofibromas, 11 dermatofibrosarcoma protuberans (DFSP), 7 neurofibromas, and 6 leiomyomas. Using pathological results as the gold standard, diagnostic performance was compared. RESULTS The number of correct diagnoses increased from 185 (47.3%) by clinical examination alone to 316 (80.8%) after the addition of HFUS (P < 0.05). Meanwhile, the indeterminate diagnosis rate decreased from 143 (36.6%) to 10 (2.6%). Using HFUS, the accuracy improved significantly for epidermoid cysts (59.6% vs. 86.7%), lipomas (50.6% vs. 94.8%), pilomatrixomas (0% vs. 48.0%), haemangiomas (23.8% vs. 57.1%), and DFSPs (0% vs. 81.8%) (all p < 0.05). However, HFUS did not significantly improve the diagnostic accuracy of dermatofibromas (15.8% vs. 21.1%, p > 0.999), neurofibromas (42.9% vs. 71.4%, p = 0.625), or leiomyomas (16.7% vs. 100%, p = 0.063). CONCLUSION Combining HFUS and clinical examination can generally improve the diagnostic accuracy and decrease the indeterminacy of invisible subcutaneous lesions, especially epidermoid cysts, lipomas, pilomatrixomas, haemangiomas, and DFSPs. However, for some rare lesions, HFUS cannot provide useful information.
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Affiliation(s)
- Yao Miao
- Department of Medical UltrasoundShanghai Tenth People's Hospital; Shanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentSchool of MedicineTongji UniversityShanghaiChina
- Department of Medical UltrasoundShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Wei‐Wei Ren
- Department of Medical UltrasoundShanghai Tenth People's Hospital; Shanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentSchool of MedicineTongji UniversityShanghaiChina
- Department of Medical UltrasoundShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Fei‐Yue Yang
- Department of Medical UltrasoundShanghai Tenth People's Hospital; Shanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentSchool of MedicineTongji UniversityShanghaiChina
| | - Liang Li
- Department of Dermatological SurgeryShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Ling Wu
- Department of Dermatological SurgeryShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Dan‐ Dan Shan
- Department of Medical UltrasoundShanghai Tenth People's Hospital; Shanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentSchool of MedicineTongji UniversityShanghaiChina
- Department of Medical UltrasoundShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Zi‐Tong Chen
- Department of Medical UltrasoundShanghai Tenth People's Hospital; Shanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentSchool of MedicineTongji UniversityShanghaiChina
- Department of Medical UltrasoundShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Li‐Fan Wang
- Department of UltrasoundZhongshan HospitalFudan UniversityShanghaiChina
| | - Qiao Wang
- Department of Medical UltrasoundShanghai Tenth People's Hospital; Shanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentSchool of MedicineTongji UniversityShanghaiChina
- Department of Medical UltrasoundShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
| | - Le‐Hang Guo
- Department of Medical UltrasoundShanghai Tenth People's Hospital; Shanghai Engineering Research Center of Ultrasound Diagnosis and TreatmentSchool of MedicineTongji UniversityShanghaiChina
- Department of Medical UltrasoundShanghai Skin Disease HospitalSchool of MedicineTongji UniversityShanghaiChina
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23
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Law T, Piotrowski MJ, Ning J, Jiang X, Ding Q, Sahin AA. Trichorhinophalangeal syndrome type 1 (TRPS1) expression in male breast carcinoma. Hum Pathol 2023; 138:62-67. [PMID: 37331526 DOI: 10.1016/j.humpath.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/09/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
Currently, there is a paucity of highly specific and sensitive markers to identify breast carcinoma in male patients. Immunohistochemical stains commonly used for unmasking primary breast carcinomas include estrogen receptor (ER) and GATA3. However, these markers are commonly expressed in carcinomas originating from other organ systems and can be reduced in breast carcinomas with higher histologic grades. Androgen receptor (AR) may be used to highlight primary male breast cancer, but this marker can also be expressed in other carcinomas. We evaluated TRPS1, a highly sensitive and specific marker for female breast carcinoma, in cases of male breast carcinoma. Through an institutional database search, we identified 72 cases of primary invasive breast carcinoma in male patients. Among ER/progesterone receptor (PR)-positive cancers, 97% showed intermediate or high positivity for both TRPS1 and GATA3. Among HER2-positive cancers, 100% showed intermediate or high positivity for TRPS1 and GATA3. One case of triple-negative breast cancer was collected, showing high positivity for TRPS1 and negativity for GATA3. AR staining was non-specific and heterogeneous: 76% showed high positivity, but the remaining 24% showed low or intermediate positivity. Additionally, among 29 cases of metastatic carcinoma to male breast tissue, 93% were negative for TRPS1, and the remaining 2 cases (7%), which were carcinomas from salivary gland primary tumors, were intermediate positive. TRPS1 is a sensitive and specific marker in the unmasking of male primary invasive breast carcinoma across different subtypes. Additionally, TRPS1 is not expressed in metastatic carcinomas of multiple primaries, with the exception of salivary gland primaries.
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Affiliation(s)
- Timothy Law
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Matthew J Piotrowski
- Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston TX 77030, USA
| | - Jing Ning
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Xinyang Jiang
- Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Qingqing Ding
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
| | - Aysegul A Sahin
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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24
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Singh S, Sharma S, Basu S. Eyelash trichomegaly associated with topical tacrolimus use in a patient with Sjogren's syndrome. Orbit 2023; 42:470-471. [PMID: 33780314 DOI: 10.1080/01676830.2021.1903045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Cai L, Lin Z, Wang H. A novel CLDN1 variant identified in a case of ILVASC with sparse curly hair. Clin Exp Dermatol 2023; 48:794-795. [PMID: 36881999 DOI: 10.1093/ced/llad071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/23/2023] [Accepted: 02/13/2023] [Indexed: 03/09/2023]
Abstract
ILVASC (ichthyosis, leukocyte vacuoles, alopecia and sclerosing cholangitis) is an extremely rare autosomal recessive syndromic ichthyosis. Herein we report on a Chinese ILVASC case with a novel phenotype of curly hair caused by a previously unrecorded homozygous mutation in CLDN1.
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Affiliation(s)
- Liangqi Cai
- Department of Dermatology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Zhimiao Lin
- Dermatology Hospital, Southern Medical University, Guangzhou, China
- Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, National Clinical Research Center for Skin and Immune Diseases and NMPA Key Laboratory for Quality Control and Evaluation of Cosmetics, Beijing, China
- Department of Dermatology, Xiamen Chang Gung Hospital, Xiamen, China
| | - Huijun Wang
- Dermatology Hospital, Southern Medical University, Guangzhou, China
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26
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Kaliyadan F, Jayasree P, Ashique KT. Looking for a grey needle in a 'hair' stack! Using a Wood's lamp for evaluating canities. Indian J Dermatol Venereol Leprol 2023; 89:636-637. [PMID: 36331861 DOI: 10.25259/ijdvl_358_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 07/01/2022] [Indexed: 11/04/2022]
Affiliation(s)
- Feroze Kaliyadan
- Department of Dermatology, Sree Narayana Institute of Medical Sciences, Chalakka, Ernakulam, Kerala, India
| | - Puravoor Jayasree
- Department of Dermatology, Medical Trust Hospital, Cochin, Kerala, India
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27
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O'Brian M, Gao W, Vandergriff T, Haugh IM. Keratotic papules on the face, trunk, and extremities of a young girl. Pediatr Dermatol 2023; 40:721-723. [PMID: 37440192 DOI: 10.1111/pde.15250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 12/29/2022] [Indexed: 07/14/2023]
Affiliation(s)
- Madeleine O'Brian
- University of Texas Southwestern Medical School, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Whitney Gao
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Travis Vandergriff
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
- Department of Pathology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Isabel Mary Haugh
- Department of Dermatology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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28
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Lim SH, Kang H, Jung SW, Lee WS. Prognosis in patients with alopecia areata with poliosis: A retrospective cohort study of 479 cases. Indian J Dermatol Venereol Leprol 2023; 89:595-599. [PMID: 37067136 DOI: 10.25259/ijdvl_552_2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 10/01/2022] [Indexed: 02/27/2023]
Affiliation(s)
- Sung Ha Lim
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Hyun Kang
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Seung-Won Jung
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Won-Soo Lee
- Department of Dermatology and Institute of Hair and Cosmetic Medicine, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
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29
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Sethuraman P, Baliah J, Reddy JRC, Umar M. Non-syndromic generalised hypotaurodontism in a case of Stage III Grade C periodontitis. BMJ Case Rep 2023; 16:e254583. [PMID: 37116957 PMCID: PMC10151955 DOI: 10.1136/bcr-2023-254583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/30/2023] Open
Abstract
Taurodontism is a rare dental morphological anomaly characterised by an unusual increase in the vertical height of the pulpal chamber along with an apical displacement of the pulpal floor. The tooth lack constriction at the cementoenamel junction is mimicking a bull tooth. Taurodontism is usually observed as an isolated tooth aberration. However, it can also be associated with specific syndromes such as Down's syndrome, amelogenesis imperfecta, Klinefelter syndrome, Tricho-Dento-Osseous syndrome, Mohr syndrome, Prader-Labhart-Willi syndrome, Ellis van Creveld syndrome and Lowe syndrome. Periodontitis is characterised by microbially associated, host-mediated inflammation that results in loss of periodontal attachment. This case report describes a rare case of non-syndromic generalised taurodontism in a male patient with Stage III Grade C periodontitis. The patient was promptly given periodontal care by root planing and Kirkland flap surgery.
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Affiliation(s)
- Priya Sethuraman
- Department of Oral Medicine and Radiology, Sri Balaji Vidyapeeth (Deemed to be University), Indira Gandhi Institute of Dental Sciences, Pondicherry, India
| | - John Baliah
- Department of Oral Medicine and Radiology, Sri Balaji Vidyapeeth (Deemed to be University), Indira Gandhi Institute of Dental Sciences, Pondicherry, India
| | - Jagat R C Reddy
- Department of Oral Medicine and Radiology, Sri Balaji Vidyapeeth (Deemed to be University), Indira Gandhi Institute of Dental Sciences, Pondicherry, India
| | - Mohamed Umar
- Department of Periodontology and Oral Implantology, Sri Balaji Vidyapeeth (Deemed to be university), Indira Gandhi Institute of Dental Sciences, Pondicherry, India
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30
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Yan Y, Huang S, Huang L, Zhang J, Li S, Zhang C, Luo X. Molecular Genetic Analysis and Growth Hormone Treatment in a Three-Generation Chinese Family with Tricho-Rhino-Phalangeal Syndrome I. Horm Res Paediatr 2023; 97:28-39. [PMID: 36990068 DOI: 10.1159/000530414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 03/20/2023] [Indexed: 03/31/2023] Open
Abstract
INTRODUCTION Tricho-rhino-phalangeal syndrome (TRPS) is a rare genetic disorder characterized by craniofacial and skeletal abnormalities, which is caused by variants in the TRPS1 gene. METHODS Clinical information and follow-up data were collected. Whole-exome sequencing (WES) was performed for variants and validated by Sanger sequencing. Bioinformatic analysis was performed to predict the pathogenicity of the identified variant. Moreover, wild-type and mutated TRPS1 vectors were constructed and transfected into human embryonic kidney (HEK) 293T cells. Immunofluorescence experiments were performed to assess the localization and expression of the mutated protein. Western blot analysis and RT-qPCR were used to detect the expression of downstream genes. RESULTS The affected family members had typical craniofacial phenotype including sparse lateral eyebrows, pear-shaped nasal tip, and large prominent ears, plus skeletal abnormalities including short stature and brachydactyly. WES and Sanger sequencing identified the TRPS1 c.880_882delAAG variant in affected family members. In vitro functional studies showed that the TRPS1 variant did not affect the cellular localization and the expression of TRPS1, but the transcriptional repression effect of the TRPS1 on the RUNX2 and STAT3 was disturbed. The proband and his brother have been treated with growth hormone (GH) for 2 years until now, and we have observed the improvement of the linear growth in both. CONCLUSIONS The variant of c.880_882delAAG in TRPS1 was responsible for the pathogenesis of the Chinese family with TRPS I. The treatment of GH could be beneficial for the height outcome in TRPS I patients, and earlier initiation and longer duration of the therapy in prepubertal or early pubertal stage could be associated with better height outcomes.
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Affiliation(s)
- Yaqin Yan
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China,
| | - Shan Huang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lianjing Huang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jingyi Zhang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Sujuan Li
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cai Zhang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Kimball KM, Craig E, Barrick C, Usmani A. Malignant Melanoma Arising in a Prolific Nevus Sebaceus With Colonization of Trichoblastoma. Am J Dermatopathol 2023; 45:196-200. [PMID: 36729790 DOI: 10.1097/dad.0000000000002355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
ABSTRACT Nevus sebaceus (NS) is a cutaneous hamartoma typically found on the head and neck, with a prevalence of 0.3% in newborns. Most NS are quiescent; however, benign and malignant lesions have been reported to arise within these nevi. Malignant transformation is not common but mainly includes basal cell carcinoma and squamous cell carcinoma. Malignant melanoma arising in NS is exceedingly rare, with only 2 previously documented cases. In this article, we report the first case of malignant melanoma arising in a NS in a 68-year-old man in the United States.
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Affiliation(s)
| | - Elise Craig
- Dermatology, Surgery, and Cosmetics of Northeast Ohio, Medina, OH; and
| | - Carl Barrick
- Dermatology, Surgery, and Cosmetics of Northeast Ohio, Medina, OH; and
| | - Arif Usmani
- Benchmark Diagnostics, LLC, Middleburg Heights, OH
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Acar Eser N, Serbest Ceylanoglu K, Malkoc Sen E. Unilateral Ciliary Madarosis in a Child After Coronavirus Disease 2019 (COVID-19) Infection. Ophthalmic Plast Reconstr Surg 2023; 39:e1-e3. [PMID: 36269887 PMCID: PMC9809536 DOI: 10.1097/iop.0000000000002295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Coronavirus disease 2019 life-threatening signs have aroused a great deal of attention since the beginning of the pandemic. In the initial stages of the pandemic, the pediatric population was mostly protected, and the symptoms in affected children were mild. Here, the authors present a 7-year-old boy with left upper eyelid ciliary madarosis that developed 9 weeks after coronavirus disease 2019 infection. During comprehensive ophthalmologic examination, no conjunctival injection, chemosis, erythema, or crusts on the eyelids and no other meibomian gland disease findings were detected. Comprehensive laboratory workup was performed to exclude any other possible causes of ciliary madarosis. All laboratory parameters tested within normal limits. In addition to the patient's ocular surface and physical examination findings, laboratory results and the timing of the symptoms as well as spontaneous recovery at follow-up visits led the authors to conclude that telogen effluvium was to cause of the isolated, unilateral ciliary madarosis in this case.
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Affiliation(s)
- Nazan Acar Eser
- Department of Ophthalmology, University of Health Science, Ulucanlar Eye Training and Research Hospital, Ankara, Turkey
| | - Kubra Serbest Ceylanoglu
- Department of Ophthalmology, University of Health Science, Ulucanlar Eye Training and Research Hospital, Ankara, Turkey
| | - Emine Malkoc Sen
- Department of Ophthalmology, University of Health Science, Ulucanlar Eye Training and Research Hospital, Ankara, Turkey
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Ergoren MC, Akcan N, Manara E, Paolacci S, Fahrioğlu U, Betmezoglu M, Bundak R, Mocan G, Temel SG, Bertelli M. Characterization of a Novel Frameshift Mutation Within the TRPS1 Gene Causing Trichorhinophalangeal Syndrome Type 1 in a Kindred Cypriot Family. Appl Immunohistochem Mol Morphol 2022; 30:635-639. [PMID: 36093893 DOI: 10.1097/pai.0000000000001056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 08/04/2022] [Indexed: 11/26/2022]
Abstract
Trichorhinophalangeal syndrome (TRPS) is an extremely rare autosomal dominant multisystem disorder characterized by craniofacial and skeletal abnormalities. Three subtypes of TRPS have been described: TRPS type I, TRPS type II, and TRPS type III. Mutations in the TRPS1 gene can cause both TRPS type I and TRPS type III. Therefore, the genotype-phenotype correlation is crucial to determine the subtype. The current family study from Cyprus involves affected patients from 4 generations who presented with alopecia, unoperated umbilical hernia, caput quadratum, long philtrum, depressed nasal bridge, frontal bossing, pes planus, beaked nose, and some deformities in hands and feet. Sequence analysis of the TRPS1 gene revealed a novel c.2854_2858del (p.Asn952ArgfsTer2) frameshift variant leading to a premature stop codon. To the best of our knowledge, we report here the first case of a Turkish Cypriot family of 4 generations with a novel frameshift mutation leading to truncated protein in the TRPS1 gene causing TRPS type I clinical phenotype. Overall, as the genotype and phenotype correlation in TRPSI is still uncertain and complex, the present outcome can enhance our knowledge of this complicated, rare, and severe genetic disorder.
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Affiliation(s)
| | - Nese Akcan
- Department of Pediatrics, Faculty of Medicine, Near East University, Nicosia, Cyprus
| | | | | | - Umut Fahrioğlu
- Agiomix, Dubai Science Park, Dubai, United Arab Emirates
- Middle East Technical University, North Cyprus Campus, Kalkanli
| | - Meryem Betmezoglu
- Department of Animal Science, Faculty of Veterinary Medicine, Near East University
| | - Ruveyde Bundak
- Department of Pediatrics, Faculty of Medicine, Near East University, Nicosia, Cyprus
- Department of Pediatrics, Faculty of Medicine, Kyrenia University
| | - Gamze Mocan
- Department of Medical Pathology, Faculty of Medicine, Near East University
| | - Sehime Gulsun Temel
- Department of Medical Genetics, Faculty of Medicine, Bursa Uludag University, Bursa, Turkey
| | - Matteo Bertelli
- MAGI Euregio, Bolzano, Italy
- MAGI's LAB S.r.l, Rovereto, Italy
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Sadat Sadati M, Nozari F. COVID-19, Overzealous Sanitizer Use, and Hair Discoloration: Case Reports. Acta Dermatovenerol Croat 2022; 30:57-58. [PMID: 36153721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Proper hand hygiene is one of the top preventive measures against the Coronavirus Disease 2019 (COVID-19). In this study, we report the cases of four patients who presented with blonde discoloration of hair of the dorsal hands and distal forearms during the COVID-19 pandemic. The mean age of participants was 41.25±4.35 years, and 75% percent of them were men. Three patients were medical staff who had to use antiseptics frequently, and one of them was a housewife. In all participants, the primary color of hand hair was black. The duration of sanitizer use was approximately four months (Table 1). One of the patients, a 42-year-old male ophthalmologist, was examined due to the blonde discoloration of hairs of the dorsal hands and distal forearms (Figure 1). The color of the hand and forearms hair had changed to blonde. However, the underlying skin was unaffected. A dermoscopy examination showed lighter hair compared with the natural black hair of unaffected parts. In addition, the hair color of the scalp, upper arms, and other body parts was normal. The patient had frequently used a hand sanitizer that contained 70% ethanol and didecyl dimethyl ammonium chloride (DDAC) for the past five months. The three other patients also had blonde discoloration observable on the hair of dorsal hands. They all reported excessive use of various alcoholic sanitizers. However, they were unaware of other ingredients. In addition, the examination of hair shafts and underlying skin was normal. The COVID-19 pandemic caused an abrupt increase in the use of sanitizers. Hand disinfectants consist of two main categories: non-alcohol-based hand sanitizers and alcohol-based hand sanitizers. The alcohol-based type is an effective measure for the inactivation of enveloped viruses such as coronaviruses (1). It has been shown that percutaneous absorption of alcohol is possible through intact skin. The use of ethanol as a penetration enhancer for pharmaceutical purposes also confirms that ethanol can be absorbed via the skin and be systematically distributed in the body (2). Reisfield et al. observed that intensive use of ethanol-based sanitizers led to an increase in urinary ethanol biomarkers concentrations (3). Alcohols used in various types of gels and solutions are easily released during hand rubbing (4). Ethanol absorption by inhalation should therefore also be taken into account (5). Different pathways of ethanol metabolism can produce free radicals, which affect the antioxidant system (6). In addition, DDAC is also associated with cell growth inhibition and stress oxidative induction (7). Hair discoloration may be a voluntary cosmetic change or a result of chemical or metal exposure. Most unwanted hair discolorations are blonde or white (8). Previous data suggested that an increase in pro-oxidants and a decrease in antioxidants play an important role in hair discoloration. A study performed by Akin Belli et al. demonstrated that hair discoloration is closely related to factors such as emotional stress and alcohol consumption, which cause oxidative stress (9). Hair discoloration might therefore result from oxidative stress induced by ethanol and DDAC used in sanitizers. Golden hair discoloration has been associated with chloride in water. Hypochlorous acid in swimming pool water can penetrate the hair cortex through the cuticle, where it can oxidize and degenerate melanosomes (10). Another possible hypothesis is that the chloride compound in DDAC might be the culprit in sanitizer hair discoloration. Additionally, the bleaching compounds used in some hand disinfectants could be another possible cause of hair discoloration. To the best of our knowledge, this observation of hair discoloration was not previously reported during the COVID-19 outbreak. It is also noteworthy that most hair discoloration normalizes over time (8). The limitations of our study included the fact that the hand sanitizers used by the patients were unavailable and thus their ingredients could not be examined. Furthermore, as most of the sanitizers in this current pandemic are not standardized, they may have unknown ingredients with discoloration properties. Due to the overzealous use of various antiseptics during the pandemic, it is expected that this side-effect will be observed more and more often. Therefore, physicians must be aware of this presentation and reassure the patient regarding this phenomenon. Additionally, products free of such agents should be prescribed to avoid hair discoloration.
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Affiliation(s)
| | - Farnoosh Nozari
- Farnoosh Nozari. MD, Molecular Dermatology Research Center Shiraz University of Medical Sciences Shiraz, Iran;
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35
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Duclaux-Loras R, Lebreton C, Berthelet J, Charbit-Henrion F, Nicolle O, Revenu de Courtils C, Waich S, Valovka T, Khiat A, Rabant M, Racine C, Guerrera IC, Baptista J, Mahe MM, Hess MW, Durel B, Lefort N, Banal C, Parisot M, Talbotec C, Lacaille F, Ecochard-Dugelay E, Demir AM, Vogel GF, Faivre L, Rodrigues A, Fowler D, Janecke AR, Müller T, Huber LA, Rodrigues-Lima F, Ruemmele FM, Uhlig HH, Del Bene F, Michaux G, Cerf-Bensussan N, Parlato M. UNC45A deficiency causes microvillus inclusion disease-like phenotype by impairing myosin VB-dependent apical trafficking. J Clin Invest 2022; 132:154997. [PMID: 35575086 PMCID: PMC9106349 DOI: 10.1172/jci154997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 03/29/2022] [Indexed: 01/03/2023] Open
Abstract
Variants in the UNC45A cochaperone have been recently associated with a syndrome combining diarrhea, cholestasis, deafness, and bone fragility. Yet the mechanism underlying intestinal failure in UNC45A deficiency remains unclear. Here, biallelic variants in UNC45A were identified by next-generation sequencing in 6 patients with congenital diarrhea. Corroborating in silico prediction, variants either abolished UNC45A expression or altered protein conformation. Myosin VB was identified by mass spectrometry as client of the UNC45A chaperone and was found misfolded in UNC45AKO Caco-2 cells. In keeping with impaired myosin VB function, UNC45AKO Caco-2 cells showed abnormal epithelial morphogenesis that was restored by full-length UNC45A, but not by mutant alleles. Patients and UNC45AKO 3D organoids displayed altered luminal development and microvillus inclusions, while 2D cultures revealed Rab11 and apical transporter mislocalization as well as sparse and disorganized microvilli. All those features resembled the subcellular abnormalities observed in duodenal biopsies from patients with microvillus inclusion disease. Finally, microvillus inclusions and shortened microvilli were evidenced in enterocytes from unc45a-deficient zebrafish. Taken together, our results provide evidence that UNC45A plays an essential role in epithelial morphogenesis through its cochaperone function of myosin VB and that UNC45A loss causes a variant of microvillus inclusion disease.
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Affiliation(s)
- Rémi Duclaux-Loras
- Université Paris Cité, Imagine Institute, Laboratory of Intestinal Immunity, INSERM, UMR1163, Paris, France
- Department of Pediatric Gastroenterology, Assistance Publique-Hopitaux de Paris, Hopital Necker–Enfants Malades, F-75015, Paris, France
| | - Corinne Lebreton
- Université Paris Cité, Imagine Institute, Laboratory of Intestinal Immunity, INSERM, UMR1163, Paris, France
| | | | - Fabienne Charbit-Henrion
- Université Paris Cité, Imagine Institute, Laboratory of Intestinal Immunity, INSERM, UMR1163, Paris, France
- Department of Pediatric Gastroenterology, Assistance Publique-Hopitaux de Paris, Hopital Necker–Enfants Malades, F-75015, Paris, France
| | - Ophelie Nicolle
- Université de Rennes, CNRS, Institut de Génétique et Développement de Rennes (IGDR)–UMR 6290, Rennes, France
| | - Céline Revenu de Courtils
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
- Institut Curie, PSL Research University, INSERM U934, CNRS UMR3215, Paris, France
| | - Stephanie Waich
- Universitätsklinik für Pädiatrie I and
- Institute of Cell Biology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Taras Valovka
- Universitätsklinik für Pädiatrie I and
- Institute of Cell Biology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Anis Khiat
- Université Paris Cité, Imagine Institute, Laboratory of Intestinal Immunity, INSERM, UMR1163, Paris, France
| | - Marion Rabant
- Department of Pathology, Assistance Publique–Hopitaux de Paris, Hopital Necker–Enfants Malades, Paris, France
| | - Caroline Racine
- Centre de Référence Anomalies du Développement et Syndromes Malformatifs, Fédération Hospitalo–Universitaire Médecine Translationnelle et Anomalies du Développement (TRANSLAD), Centre Hospitalier Universitaire, and Equipe GAD, Université de Bourgogne Franche-Comté, Faculté de Médecine, INSERM LNC UMR 1231, Dijon, France
| | - Ida Chiara Guerrera
- Proteomics Platform 3P5-Necker, Université Paris Descartes-Structure Fédérative de Recherche Necker, INSERM US24/CNRS UMS3633, Paris, France
| | - Júlia Baptista
- Peninsula Medical School, Faculty of Health, University of Plymouth, Plymouth, United Kingdom
- Royal Devon and Exeter NHS Foundation Trust, Exeter, United Kingdom
| | - Maxime M. Mahe
- Université de Nantes, INSERM, TENS, The Enteric Nervous System in Gut and Brain Diseases, IMAD, Nantes, France
| | - Michael W. Hess
- Institut für Histologie und Embryologie Medical University of Innsbruck, Innsbruck, Austria
| | - Béatrice Durel
- Cell Imaging Platform, INSERM-US24-CNRS UMS 3633 Structure Fédérative de Recherche Necker, Université Paris Cité, Paris, France
| | - Nathalie Lefort
- iPS Core Facility, Imagine Institute, INSERM U1163, Paris Descartes University, Paris, France
| | - Céline Banal
- iPS Core Facility, Imagine Institute, INSERM U1163, Paris Descartes University, Paris, France
| | - Mélanie Parisot
- Genomics Core Facility, Institut Imagine–Structure Fédérative de Recherche Necker, INSERM U1163 et INSERM US24/CNRS UMS3633, Paris Descartes Sorbonne Paris Cite University, Paris, France
| | - Cecile Talbotec
- Department of Pediatric Gastroenterology, Assistance Publique-Hopitaux de Paris, Hopital Necker–Enfants Malades, F-75015, Paris, France
| | - Florence Lacaille
- Department of Pediatric Gastroenterology, Assistance Publique-Hopitaux de Paris, Hopital Necker–Enfants Malades, F-75015, Paris, France
| | | | - Arzu Meltem Demir
- Ankara Child Health and Diseases, Training and Research Hospital, Pediatric Gastroenterology, Ankara, Turkey
| | - Georg F. Vogel
- Universitätsklinik für Pädiatrie I and
- Institute of Cell Biology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | - Laurence Faivre
- Department of Pathology, Assistance Publique–Hopitaux de Paris, Hopital Necker–Enfants Malades, Paris, France
| | | | | | | | | | - Lukas A. Huber
- Institute of Cell Biology, Biocenter, Medical University of Innsbruck, Innsbruck, Austria
| | | | - Frank M. Ruemmele
- Department of Pediatric Gastroenterology, Assistance Publique-Hopitaux de Paris, Hopital Necker–Enfants Malades, F-75015, Paris, France
| | - Holm H. Uhlig
- Translational Gastroenterology Unit and Department of Paediatrics, John Radcliffe Hospital, NIHR Oxford Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Filippo Del Bene
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
- Institut Curie, PSL Research University, INSERM U934, CNRS UMR3215, Paris, France
| | - Grégoire Michaux
- Université de Rennes, CNRS, Institut de Génétique et Développement de Rennes (IGDR)–UMR 6290, Rennes, France
| | - Nadine Cerf-Bensussan
- Université Paris Cité, Imagine Institute, Laboratory of Intestinal Immunity, INSERM, UMR1163, Paris, France
| | - Marianna Parlato
- Université Paris Cité, Imagine Institute, Laboratory of Intestinal Immunity, INSERM, UMR1163, Paris, France
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Serban D, Ricci C, Ambrosi F, DE Biase D, Serra M, Dika E, Lambertini M, Corti B. A case of adnexal tumor combining inverted follicular keratosis and trichoblastoma: molecular genetics evidence against a pathogenetic role of human Papillomaviruses. Ital J Dermatol Venerol 2022; 157:111-113. [PMID: 33890741 DOI: 10.23736/s2784-8671.21.06928-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Daniela Serban
- Second Department of Dermatology, Colentina Clinical Hospital, Bucarest, Romania
| | - Costantino Ricci
- Unit of Pathology, Maggiore Hospital, AUSL Bologna, Bologna, Italy
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | | | - Dario DE Biase
- Unit of Molecular Diagnostic, University of Bologna, Bologna, Italy
| | | | - Emi Dika
- Unit of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy -
| | - Martina Lambertini
- Unit of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Barbara Corti
- Unit of Pathology, University of Bologna, Bologna, Italy
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Abstract
Loss-of-function mutations in SKIV2L underlie trichohepatoenteric syndrome (THES2), a rare inborn error of immunity characterized by diarrhea, skin lesions, brittle hair, and immunodeficiency. SKIV2L is part of a multiprotein complex required for exosome-mediated RNA surveillance through RNA decay. In this issue of the JCI, Yang et al. delineate a mechanism underlying autoinflammatory skin disease in Skiv2l-deficient mice. Thus, a lack of SKIV2L activates mTORC1 signaling in keratinocytes and T cells, impeding skin barrier integrity and T cell homeostasis. Interestingly, treatment with the mTOR inhibitor rapamycin improves skin symptoms in Skiv2l-deficient mice, suggesting a possible therapeutic avenue for patients with THES2.
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38
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Alshaalan Z, Patel P, Routt E, Ciocon D. Proliferating Pilar Tumor: Two Cases and a Review of the Literature. J Drugs Dermatol 2021; 20:1346-1348. [PMID: 34898151 DOI: 10.36849/jdd.5978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Trichilemmal cysts (TCs) are the most common cystic lesions arising on the scalp and up to 2% give rise to a proliferating trichilemmal tumor (PTT). A rare subset of PTTs are termed malignant due to their histologic characteristics, aggressive behavior and potential for metastasis. The histological hallmark of TCs and PTTs is the absence of a granular layer resulting in abrupt trichilemmal keritanization.
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Gracia-Darder I, Saus C, Martín-Santiago A. Hair Abnormalities: Key to Suspecting Menkes Disease. Actas Dermosifiliogr 2021; 112 Suppl 1:10. [PMID: 33905712 DOI: 10.1016/j.ad.2020.08.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/29/2020] [Accepted: 08/22/2020] [Indexed: 11/17/2022] Open
Affiliation(s)
- I Gracia-Darder
- Departamento de Dermatología, Hospital Universitario Son Espases, Palma de Mallorca, España.
| | - C Saus
- Departamento de Anatomía Patológica, Hospital Universitario Son Espases, Palma de Mallorca, España
| | - A Martín-Santiago
- Departamento de Dermatología, Hospital Universitario Son Espases, Palma de Mallorca, España
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Cardoso I, Rodrigues M, Grangeia A, Melão L, Aguiar F, Costa G, Brito I. Tricorhinophalangeal Syndrome type 1: a novel variant and Perthes-like hip changes as first manifestation. Acta Reumatol Port 2021; 46:186-188. [PMID: 34285179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We report a case of Trichorhinophalangeal syndrome type I (TRPS1) in a 16-year-old boy who was referred due to painless finger deformities over the last year. Legg-Calvé-Perthes disease (LGP) had been diagnosed at age 7 and required surgical treatment at age 12. Parents were healthy and non consanguineous; there was family history of pectus carinatum of maternal lineage. On examination the patient presented a bulbous nose, thin and sparse scalp hair; pectus carinatum; clinodactyly of the first and fifth fingers and hard painless swelling of all of the proximal interphalangeal joints; brachydactyly of the toes. Laboratory tests were unremarkable and radiographic studies revealed distinctive abnormalities of the hands (e.g., epiphyseal coning). This diagnosis was confirmed by gene sequencing, which identified in heterozygosity a pathogenic variant c.124G>T (p.Glu42Ter) in the exon 3 of the TRPS1 gene. The diagnosis of TRPS1 may be suspected upon identification of characteristic physical features, a compatible clinical history and imaging findings.
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Affiliation(s)
- Ivana Cardoso
- Pediatrics Department, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
| | - Mariana Rodrigues
- Pediatric and Young Adult Rheumatology Unity, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Ana Grangeia
- Human Genetics Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Lina Melão
- Radiology Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Francisca Aguiar
- Pediatric and Young Adult Rheumatology Unity, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Gilberto Costa
- Ortophedics Department, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Iva Brito
- Pediatric and Young Adult Rheumatology Unity, Centro Hospitalar Universitário São João, Porto, Portugal
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Abstract
Skin abnormalities are often indicative of cardiovascular diseases. Such a disease entity is called cardiocutaneous syndrome; however, the details regarding the involvement of bulla and nails remain largely unclear. A 49-year-old man with systemic bulla was admitted for heart failure. His bulla had previously been diagnosed as epidermolysis bullosa, but no known gene mutations for it had been identified. He had a triad of palmoplantar keratosis, curly and fine hair, and cardiomyopathy, which are characteristic of NAXOS-Carvajal syndrome. This case highlights the fact that bulla and brittle nails can accompany NAXOS-Carvajal syndrome, showing that these extra-cardiac findings can help identify otherwise overlooked serious cardiac conditions.
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Affiliation(s)
- Takanori Sato
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Japan
| | - Sho Okada
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Japan
| | - Togo Iwahana
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Japan
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Sakalauskaitė-Juodeikienė E, Eling P, Finger S. Stephanus Bisius (1724-1790) on mania and melancholy, and the disorder called plica polonica. J Hist Neurosci 2021; 30:77-93. [PMID: 32543320 DOI: 10.1080/0964704x.2020.1770957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Stephanus Bisius (1724-1790) was a physician of Italian descent and a graduate of the University of Pavia. He was invited to the Polish-Lithuanian Commonwealth in the early 1760s and became head of the Faculty of Medicine at Vilnius University in 1781. In 1772, Bisius had authored the first original study on nervous and mental diseases in the Grand Duchy of Lithuania. In his 35-page booklet, written in Latin and Polish, Bisius characterized mania and melancholy as diseases of the brain, explaining that the organs that feed the human soul are affected, not the soul itself. He introduced the principles of humoralism and solidism to readers, and recognized that autopsies had failed to reveal reliable findings concerning mania or melancholy. Bisius also described the origins of the challenging disorder called plica polonica, a strange condition associated with tufts of matted hair. As a physician during the medical Enlightenment, Bisius criticized metaphysical speculations in medicine and stated that plica was only a result of superstitions. Even though he proposed antiphlogistic treatments for patients with mania and melancholy, he maintained that time and faith in God might help some patients overcome their infirmities.
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Affiliation(s)
- Eglė Sakalauskaitė-Juodeikienė
- Department of Neurology and Neurosurgery, Institute of Clinical Medicine; Centre for Medical Ethics, Law and History, Institute of Health Sciences, Faculty of Medicine, Vilnius University , Vilnius, Lithuania
| | - Paul Eling
- Donders Institute for Brain, Cognition, and Behaviour, Radboud University , Nijmegen, Netherlands
| | - Stanley Finger
- Department of Psychological and Brain Sciences, and Program in History of Medicine, Washington University , St. Louis, Missouri, USA
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Cauteruccio M, Perna A, Vitiello R, Oliva MS, Pesare E, Ziranu A, Merendi G. A rare case of post-traumatic infected pilomatricoma of the finger of the hand diagnosed after performing radioiodine therapy. J BIOL REG HOMEOS AG 2020; 34:83-87. ADVANCES IN MUSCULOSKELETAL DISEASES AND INFECTIONS-SOTIMI 2019. [PMID: 32856445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We present the clinical case of a young woman with pilomatricoma of the finger, a very rare location. The patient got infected after receiving radioiodine therapy to treat a thyroid carcinoma. Given the patient's high functional requirements we choose a minimal treatment which allowed her to maintain a sufficient functionality.
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Affiliation(s)
- M Cauteruccio
- Institute of Orthopedics, Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, Rome, Italy
- Institute of Orthopedics, Università Cattolica del Sacro Cuore - Largo Francesco Vito 1, Rome, Italy
| | - A Perna
- Institute of Orthopedics, Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, Rome, Italy
- Institute of Orthopedics, Università Cattolica del Sacro Cuore - Largo Francesco Vito 1, Rome, Italy
| | - R Vitiello
- Institute of Orthopedics, Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, Rome, Italy
- Institute of Orthopedics, Università Cattolica del Sacro Cuore - Largo Francesco Vito 1, Rome, Italy
| | - M S Oliva
- Institute of Orthopedics, Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, Rome, Italy
- Institute of Orthopedics, Università Cattolica del Sacro Cuore - Largo Francesco Vito 1, Rome, Italy
| | - E Pesare
- Institute of Orthopedics, Università Cattolica del Sacro Cuore - Largo Francesco Vito 1, Rome, Italy
| | - A Ziranu
- Institute of Orthopedics, Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, Rome, Italy
- Institute of Orthopedics, Università Cattolica del Sacro Cuore - Largo Francesco Vito 1, Rome, Italy
| | - G Merendi
- Institute of Orthopedics, Fondazione Policlinico Universitario Agostino Gemelli - IRCCS, Largo Agostino Gemelli 8, Rome, Italy
- Institute of Orthopedics, Università Cattolica del Sacro Cuore - Largo Francesco Vito 1, Rome, Italy
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Heyer C. Zu viel Stress führt zu vorzeitigem Ergrauen. MMW Fortschr Med 2020; 162:34. [PMID: 32072532 DOI: 10.1007/s15006-020-0154-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
BACKGROUND A space-occupying lesion of the eyelid in young adults is often a sign of an inflammation, a trauma or a benign neoplasm. The aim of this case report is to demonstrate a rare basal cell carcinoma, which presumably already arose in adolescence without further high-risk factors. METHODS A 28-year-old male patient presented for a second opinion on a painless swelling of the right lower eyelid. According to the patient's history the swelling had been present since the age of 16 years and originally resembled a molluscum contagiosum. An ophthalmologist in private practice made the diagnosis of a suspected trichoepithelioma. The extended patient history revealed a blood coagulation disorder. The clinical ophthalmological examination revealed a nodular space-occupying lesion with a border wall and telangiectasia. The further ophthalmological examination was bilaterally inconspicuous. Due to the suspicion of a malignant process, an operation was promptly carried out using local anesthesia with complete tumor excision and pedicled flap plasty as well as a histopathological investigation to confirm the diagnosis. RESULTS The histopathological investigation revealed underlying infiltrates of a basaloid tumor with bale-shaped trabecular growth, sometimes with peripheral palisading of the cells. The cells were predominantly monomorphic with isolated pleomorphic nuclei and sometimes enclosed mitoses. Immunohistochemically the cells were strongly positive for BerEP4 and negative for epithelial membrane antigen (EMA). The diagnosis of a nodular basal cell carcinoma of the right lower eyelid was made. All incision margins were free of tumor cells (R0 resection). In the dermatological screening no further manifestations were detected. CONCLUSION Despite the occurrence of a space-occupying lesion of the eyelid in a young adult patient and also with no further risk factors, in addition to an inflammatory event and a benign tumor, a malignant disease, such as a basal cell carcinoma should also be taken into consideration. A tissue biopsy or complete excision with subsequent histological examination including an immunohistochemical analysis are essential for differentiation from other tumor entities.
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Affiliation(s)
- Alexander C Rokohl
- Zentrum für Augenheilkunde, Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Kerpener Str. 62, 50924, Köln, Deutschland.
| | - Heike Löser
- Institut für Pathologie, Medizinische Fakultät und Uniklinik Köln, Universität zu Köln, Köln, Deutschland
| | - Joel M Mor
- Zentrum für Augenheilkunde, Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Kerpener Str. 62, 50924, Köln, Deutschland
| | - Niklas Loreck
- Zentrum für Augenheilkunde, Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Kerpener Str. 62, 50924, Köln, Deutschland
| | - Konrad R Koch
- Zentrum für Augenheilkunde, Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Kerpener Str. 62, 50924, Köln, Deutschland
| | - Ludwig M Heindl
- Zentrum für Augenheilkunde, Universität zu Köln, Medizinische Fakultät und Uniklinik Köln, Kerpener Str. 62, 50924, Köln, Deutschland
- Centrum für Integrierte Onkologie (CIO) Aachen - Köln - Bonn - Düsseldorf, Köln, Deutschland
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Zaidi Z. Skin of colour: Characteristics and disease. J PAK MED ASSOC 2017; 67:292-299. [PMID: 28138188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Skin colour varies from pale white to very dark. Fitzpatrick's skin phototypes are based on the person's skin colour and its response to sun exposure in terms of burning and tanning of the skin. Fitzpatrick's type 1V-V1 is known as the skin of colour and type 1-111 is the fair or white skin. The colour of the skin and texture of the hair are the most apparent phenotype to differentiate the different races; this correlates closely with the geography and ultraviolet radiation of the sun. There are notable differences in skin disease incidence, presentation, and treatment based on skin type. Differences in skin anatomy and physiology between the fair skin and the skin of colour may explain disparities in skin disorders and provide insight into appropriate differences in the management of cutaneous disease. Differences in culture and habits may produce skin lesions unknown to the local physicians. Temperature, humidity and rainfall are closely interwoven with the fauna and flora of the area. Hot and humid climate favours bacterial and fungal infections. Today in this multicultural society due to globalization, a physician has to see patients from all over the globe. There is a need for the physicians to know the diseases of people from different racial and ethnic backgrounds for early diagnosis and treatment.
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Affiliation(s)
- Zohra Zaidi
- Consultant Dermatologist, London, United Kingdom
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Ramotshabi K, Connelly TM, Mullins M, Kelly J, O'Grady P. Pilomatrixoma or a "hair line fracture". Ir Med J 2017; 110:508. [PMID: 28657285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- K Ramotshabi
- Division of Trauma and Orthopaedic Surgery, Mayo General Hospital, Castlebar, Co. Mayo
| | - T M Connelly
- Division of Trauma and Orthopaedic Surgery, Mayo General Hospital, Castlebar, Co. Mayo
| | - M Mullins
- Division of Trauma and Orthopaedic Surgery, Mayo General Hospital, Castlebar, Co. Mayo
| | - J Kelly
- Division of Trauma and Orthopaedic Surgery, Mayo General Hospital, Castlebar, Co. Mayo
| | - P O'Grady
- Division of Trauma and Orthopaedic Surgery, Mayo General Hospital, Castlebar, Co. Mayo
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[Proceedings from the Paris Dermatology Meeting, 10 December 2008]. Ann Dermatol Venereol 2009; 136 Suppl 2:S21-32. [PMID: 20196260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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STANGL E. [The influence of pantothenic acid on scalp hair damaged by infectious diseases in humans]. Ther Umsch 2008; 4:134-139. [PMID: 18906083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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