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Lin LY, Lee NG, Yoon MK, Stagner AM. Clear Cell Syringoma of the Eyelids, a Distinctive Histopathologic Variant Associated with Diabetes Mellitus. Ophthalmic Plast Reconstr Surg 2023; 39:e20-e22. [PMID: 36136737 DOI: 10.1097/iop.0000000000002254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The authors describe the clinical and histologic findings of the clear cell variant of syringoma. Three adult female patients (age range 39-76 years old) were found to have multiple, flesh-colored lower eyelid papules, clinically consistent with syringomas, but histologically displaying abundant clear cell change. Two patients had known diagnoses of uncontrolled diabetes.
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Affiliation(s)
| | - Nahyoung Grace Lee
- Department of Ophthalmology
- Division of Ophthalmic Plastic and Reconstructive Surgery Service
| | - Michael K Yoon
- Department of Ophthalmology
- Division of Ophthalmic Plastic and Reconstructive Surgery Service
| | - Anna M Stagner
- Department of Ophthalmology
- David G. Cogan Laboratory of Ophthalmic Pathology, Massachusetts Eye and Ear, Harvard Medical School, Boston, MA
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2
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Matsuoka A, Fujii K, Kanekura T. Clear cell syringoma: Disappearance of clear cells after improvement in diabetes mellitus by pituitary adenoma resection. J Dermatol 2022; 49:e268-e269. [PMID: 35466462 DOI: 10.1111/1346-8138.16397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 03/17/2022] [Accepted: 03/31/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Atsuko Matsuoka
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Kazuyasu Fujii
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
| | - Takuro Kanekura
- Department of Dermatology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, Japan
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Choi J, Tschen J, Cohen PR. Incidental Clear Cell Syringoma of the Scalp in a Patient With Lichen Planopilaris. Cureus 2021; 13:e16064. [PMID: 34345549 PMCID: PMC8323619 DOI: 10.7759/cureus.16064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/30/2021] [Indexed: 11/05/2022] Open
Abstract
Syringomas are benign neoplasms of eccrine ducts; glycogen accumulation in the tumor cell cytoplasm results in a clear cell variant of syringoma. Syringoma and syringomatous proliferations (secondary to alteration of the eccrine sweat ducts) have been observed, albeit uncommonly, as an incidental finding in areas of alopecia on the scalp. A 71-year-old woman with scalp hair loss caused by lichen planopilaris had subclinical clear cell syringoma discovered as an incidental observation on evaluation of the biopsy specimen from an area of hair loss. Including our patient, scalp alopecia-associated syringoma or syringomatous proliferation has been described in a 47-year-old man and 16 women. The women ranged in age from 33 years to 83 years (median, 57 years). The duration of alopecia ranged from six months to 22 years; almost half of the patients (three of seven) had hair loss for 20 or more years. The frontal scalp was the most common location of alopecia; the parietal scalp and the entire scalp with diffuse hair loss were also frequent sites. Prior to biopsy, female pattern alopecia was the most common clinical diagnosis; lichen planopilaris and scarring alopecia were also frequent diagnoses. After the biopsy, pseudopelade was the most common diagnosis; lichen planopilaris and female pattern alopecia were also frequently observed. The pathogenesis of incidental syringomas and syringomatous proliferation in areas of scalp hair loss is postulated to be secondary to subclinical alopecia-related reactive changes.
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Affiliation(s)
- Jihee Choi
- Dermatology, St. Joseph Dermatopathology, Houston, USA
| | - Jaime Tschen
- Dermatology, St. Joseph Dermatopathology, Houston, USA
| | - Philip R Cohen
- Dermatology, San Diego Family Dermatology, National City, USA
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Edmonds N, Forrester V, Guffey D, Russell M. Clear cell change in eccrine sweat glands noted in frozen section. Health Sci Rep 2021; 4:e265. [PMID: 33732898 PMCID: PMC7942398 DOI: 10.1002/hsr2.265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 02/06/2021] [Accepted: 02/21/2021] [Indexed: 11/09/2022] Open
Affiliation(s)
- Nicole Edmonds
- Department of DermatologyUniversity of Virginia School of MedicineCharlottesvilleVirginia
| | - Vernon Forrester
- Department of DermatologyUniversity of Virginia School of MedicineCharlottesvilleVirginia
| | - Darren Guffey
- Department of DermatologyUniversity of Virginia School of MedicineCharlottesvilleVirginia
| | - Mark Russell
- Department of DermatologyUniversity of Virginia School of MedicineCharlottesvilleVirginia
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Fulton EH, Kaley JR, Gardner JM. Skin Adnexal Tumors in Plain Language: A Practical Approach for the General Surgical Pathologist. Arch Pathol Lab Med 2019; 143:832-851. [PMID: 30638401 DOI: 10.5858/arpa.2018-0189-ra] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
CONTEXT.— Skin adnexal tumors, those neoplasms deriving from hair follicles and sweat glands, are often a source of confusion amongst even experienced pathologists. Many well-described entities have overlapping features, tumors are often only partially sampled, and many cases do not fit neatly into well-established classification schemes. OBJECTIVES.— To simplify categorization of adnexal tumors for the general surgical pathologist and to shed light on many of the diagnostic dilemmas commonly encountered in daily practice. The following review breaks adnexal neoplasms into 3 groups: sebaceous, sweat gland-derived, and follicular. DATA SOURCES.— Pathology reference texts and primary literature regarding adnexal tumors. CONCLUSIONS.— Review of the clinical and histopathologic features of primary cutaneous adnexal tumors, and the diagnostic dilemmas they create, will assist the general surgical pathologist in diagnosing these often challenging lesions.
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Affiliation(s)
- Edward H Fulton
- From the Department of Pathology, University of Arkansas for Medical Sciences, Little Rock
| | - Jennifer R Kaley
- From the Department of Pathology, University of Arkansas for Medical Sciences, Little Rock
| | - Jerad M Gardner
- From the Department of Pathology, University of Arkansas for Medical Sciences, Little Rock
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Williams K, Shinkai K. Evaluation and management of the patient with multiple syringomas: A systematic review of the literature. J Am Acad Dermatol 2016; 74:1234-1240.e9. [PMID: 26850654 DOI: 10.1016/j.jaad.2015.12.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 12/01/2015] [Accepted: 12/05/2015] [Indexed: 11/24/2022]
Abstract
Syringomas are benign adnexal tumors with distinct histopathologic features, including the characteristic comma ("tadpole") shaped tail comprised of dilated, cystic eccrine ducts. Clinically, syringomas typically present in adolescent females predominantly in the periorbital region. They may present as solitary or multiple lesions, and more rare sites of involvement include the genitals, palms, scalp, and the chest. Over the past 50 years, there have been >800 reported cases of syringoma either alone or in conjunction with a systemic syndrome, most commonly Down syndrome. The primary aim of this systematic review is to discuss the clinical features and associations of syringomas with a focus on the patient with multiple syringomas. Its secondary aims are to explore pathophysiology with a focus on multiple syringomas and provide comprehensive data on both traditional and novel treatments. Importantly, multiple syringomas present across a broad clinical spectrum. Though noted in many textbooks to be related to tumor syndromes, the association of syringomas with inherited tumor syndromes is only rarely reported in the literature. Despite multiple reported cases of syringoma, the pathophysiology remains poorly understood and treatment continues to pose a significant challenge.
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Affiliation(s)
- Kiyanna Williams
- University of California San Francisco School of Medicine, San Francisco, California
| | - Kanade Shinkai
- Department of Dermatology, University of California San Francisco, San Francisco, California.
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Abstract
Due to the proximity of the skin, subcutis, and axilla to the breast, the possibility of a "breast mass" actually representing a dermatologic lesion should be considered, particularly if the proliferation does not look characteristically "mammary" in appearance. Even more underappreciated is the scenario of a dermatologic proliferation morphologically masquerading as a breast tumor. The pathologist can fall prey to this pitfall if he/she is led to believe that the location of the tumor is the breast proper. The aim of this review is to provide an overview of dermatologic mimickers of breast lesions and helpful ways to discern between them when possible.
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YOSHIMI N, KUROKAWA I, KAKUNO A, TSUBURA A, YAMANISHI K. Case of generalized eruptive clear cell syringoma with diabetes mellitus. J Dermatol 2011; 39:744-5. [DOI: 10.1111/j.1346-8138.2011.01389.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Müller CSL, Tilgen W, Pföhler C. Clinicopathological diversity of syringomas: A study on current clinical and histopathologic concepts. DERMATO-ENDOCRINOLOGY 2011; 1:282-8. [PMID: 21572872 DOI: 10.4161/derm.1.6.10641] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2009] [Accepted: 11/17/2009] [Indexed: 11/19/2022]
Affiliation(s)
- Cornelia S L Müller
- The Saarland University Hospital; Department of Dermatology; Homburg/Saar, Germany
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The use of immunohistochemistry in the diagnosis of metastatic clear cell renal cell carcinoma: a review of PAX-8, PAX-2, hKIM-1, RCCma, and CD10. Adv Anat Pathol 2010; 17:377-93. [PMID: 20966644 DOI: 10.1097/pap.0b013e3181f89400] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The diagnosis of metastatic clear cell renal cell carcinoma may be difficult in some cases, particularly in the small image-guided biopsies that are becoming more common. As targeted therapies for renal cell carcinoma are now standard treatment, the recognition and diagnosis of renal cell carcinoma has become even more critical. Many adjunctive immunohistochemical markers of renal epithelial lineage such as CD10 and RCCma have been proposed as aids in the diagnosis of metastatic renal cell carcinoma, but low specificities often limit their utility. More recently described markers (PAX-2, PAX-8, human kidney injury molecule-1, hepatocyte nuclear factor-1-β, and carbonic anhydrase-IX) offer the potential for greater sensitivity and specificity in this diagnostic setting; however, knowledge of their expected staining in other neoplasms and tissues is critical for appropriate use. In this review, we discuss the most widely used immunohistochemical markers of renal lineage with an emphasis on their sensitivity and specificity for metastatic clear cell renal cell carcinoma. Subsequently, we present a variety of organ-specific differential diagnostic scenarios in which metastatic clear cell renal cell carcinoma might be considered and we propose immunopanels for use in each situation.
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Jeon EK, Cho AY, Lee Y, Seo YJ, Park JK, Lee JH. Multiple yellow-brown papules on the neck and anterior trunk of a patient with diabetes mellitus. Clin Exp Dermatol 2009; 34:643-4. [DOI: 10.1111/j.1365-2230.2008.02847.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Petersson F, Mjörnberg PA, Kazakov DV, Bisceglia M. Eruptive Syringoma of the Penis. A Report of 2 Cases and a Review of the Literature. Am J Dermatopathol 2009; 31:436-8. [DOI: 10.1097/dad.0b013e3181930d93] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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MARZANO AV, FIORANI R, GIRGENTI V, CROSTI C, ALESSI E. Familial syringoma: Report of two cases with a published work review and the unique association with steatocystoma multiplex. J Dermatol 2009; 36:154-8. [DOI: 10.1111/j.1346-8138.2009.00613.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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SIGNORETTI S, ANNESSI G, OCCHIUTO S, RUATTI P, FARAGGIANA T. Papular clear cell hyperplasia of the eccrine duct in a diabetic. Br J Dermatol 2008. [DOI: 10.1046/j.1365-2133.1996.d01-952.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lin WL, Lin WC, Kuo TT, Chen CH, Hong HS. An unusual complex cutaneous adnexal tumor composed of syringocystadenoma papilliferum, apocrine hidrocystoma, and clear cell syringoma. Dermatol Surg 2007; 33:876-9. [PMID: 17598859 DOI: 10.1111/j.1524-4725.2007.33187.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wan-Lung Lin
- Department of Dermatology, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
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20
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An Unusual Complex Cutaneous Adnexal Tumor Composed of Syringocystadenoma Papilliferum, Apocrine Hidrocystoma, and Clear Cell Syringoma. Dermatol Surg 2007. [DOI: 10.1097/00042728-200707000-00018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Abstract
The purpose of our study was to describe clinical and histopathological features of sixty one patients with histological diagnosis of syringoma over four year period in our dermatology clinic in Korea. Female:male ratio was 6.6:1 with onset of age during 2nd and 3rd decades in more than half of the patients in our study. The most frequently involved site was eyelids (43 cases, 70.5%) and the most common color of lesion was skin-color (30 cases, 49.2%). In 34 cases, characteristic tad-pole appearances (55.7%) were observed. Basal hyperpigmentation was observed more frequently in brown-colored lesion (p=0.005). Fibrosis was observed more frequently in erythematous lesion (p=0.033). Keratin cyst was observed less frequently in genital involved group (p=0.006). We also performed immunohistochemical stain for the presence of progesterone receptor (PR) and estrogen receptor (ER) in fifty six cases with negative results.
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Affiliation(s)
- Ju Hee Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Yong Chang
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Hoon Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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22
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Perna AG, Smith MJ, Krishnan B, Reed JA. CD10 is expressed in cutaneous clear cell lesions of different histogenesis. J Cutan Pathol 2005; 32:348-51. [PMID: 15811119 DOI: 10.1111/j.0303-6987.2005.00333.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND CD10, the Common Acute Lymphoblastic Leukemia Antigen, is a neutral endopeptidase commonly used as a marker of early B-cell differentiation in the classification of lymphomas. Neoplasms of other histogenesis may express CD10, including renal cell carcinoma. Renal cell carcinoma metastatic to the skin (MRCC) can simulate other more common clear cell lesions in which expression of CD10 has not been described. METHODS Fifty-two cutaneous clear cell lesions including xanthomas (CX), xanthelasmas (XA), xanthogranulomas (XG), balloon cell nevi (BCN), nodular/clear cell hidradenomas (CCH), and MRCC were examined by immunohistochemistry for the expression of CD10, noting frequency and pattern of labeling. RESULTS CD10 was expressed in 32/35 of the xanthomatous lesions (CX, XA, and XG), 3/3 MRCC, but only 2/8 BCN and 2/6 CCH. BCN and CCH expressed CD10 in fewer than 10% of the clear cells, whereas all MRCC and most xanthomatous lesions had labeling in greater than 10% (p < 0.001). Xanthomatous lesions exhibited a predominantly membranous pattern of labeling compared to the cytoplasmic pattern of MRCC (p < 0.025). CONCLUSIONS Cutaneous clear cell lesions of different histogenesis express CD10, limiting its use as a specific diagnostic marker for MRCC. Among other clear cell lesions, however, BCN and CCH have a lower frequency of labeling than does MRCC, and xanthomatous lesions show a membranous pattern compared to the cytoplasmic pattern of MRCC, BCN, and CCH. This latter observation may be indicative of altered protein function or trafficking.
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Affiliation(s)
- Ashley G Perna
- Department of Pathology, Baylor College of Medicine, Houston, Texas 77030, USA
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Affiliation(s)
- Todd M Wilkinson
- University of North Carolina School of Medicine, University of North Carolina Hospitals, Chapel Hill, North Carolina, USA
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Timpanidis PC, Lakhani SR, Groves RW. Progesterone receptor-positive eruptive syringoma associated with diabetes. J Am Acad Dermatol 2003; 48:S103-4. [PMID: 12734492 DOI: 10.1067/mjd.2003.159] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Syringoma is a benign eccrine tumor that generally forms asymptomatic papules on facial skin. Eruptive forms of the tumor are uncommon and of uncertain cause. We report a case in which eruptive syringoma with clear cell morphology was found to express progesterone receptors, suggesting the possibility of hormonal control of the tumor.
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Affiliation(s)
- Penelope C Timpanidis
- Department of Dermatology, University College London Hospitals Trust, United Kingdom
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25
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Soler-Carrillo J, Estrach T, Mascaró JM. Eruptive syringoma: 27 new cases and review of the literature. J Eur Acad Dermatol Venereol 2001; 15:242-6. [PMID: 11683289 DOI: 10.1046/j.1468-3083.2001.00235.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Eruptive syringomas are uncommon eccrine sweat gland tumours. Only 64 cases have been reported in the literature. OBJECTIVE Clinical findings of 27 patients with eruptive syringomas were reviewed over a 47-year period. RESULTS The tumours appeared as multiple yellow-brown-coloured papules localized on the neck, anterior trunk, axillae, shoulders, abdomen or pubic area. This disorder occurs more frequently among women, and is frequent in the prepubertal as well as in the postpubertal age. The diagnosis was not clinically suspected in most cases. CONCLUSIONS Eruptive syringomas have to be considered in differential diagnosis of papular dermatosis at any age.
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Llorca JG, Roca JB, González LC, Albares Tendero MP, Antón RB. Siringomas de células claras y diabetes mellitus. ACTAS DERMO-SIFILIOGRAFICAS 2001. [DOI: 10.1016/s0001-7310(01)76488-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Van Leeuwen RL, Lavrijsen AP, Starink TM. Eccrine syringofibroadenoma: the simultaneous occurrence of two histopathological variants (conventional and clear-cell type) in one patient. Br J Dermatol 1999; 141:947-9. [PMID: 10583198 DOI: 10.1046/j.1365-2133.1999.03189.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Requena L, Sarasa JL, Piqué E, Fariña MC, Olivares M, Martín L. Clear-cell porocarcinoma: another cutaneous marker of diabetes mellitus. Am J Dermatopathol 1997; 19:540-4. [PMID: 9335250 DOI: 10.1097/00000372-199710000-00110] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The relationship between clear-cell syringoma and diabetes mellitus is well established. We present a case of clear-cell porocarcinoma in a diabetic patient. The lesion consisted of a 5-cm nodule on the lateral aspect of the left leg. Histopathologically, the neoplasm was composed of irregular aggregations of neoplastic cells with striking clear-cell appearance, showing features of ductal differentiation. The clear-cell appearance of neoplastic cells was due to glycogen accumulation within their cytoplasm. Immunohistochemistry and ultrastructural studies also supported the diagnosis of a neoplasm with sweat ductal differentiation. Enzyme histochemical reactions for phosphorylase immunoreactivity on fresh, unfixed sections of the neoplasm demonstrated that this immunoreactivity was remarkably decreased. Some adnexal neoplasms of the skin mostly composed of clear cells may be cutaneous markers of diabetes mellitus. Phosphorylase activity deficiency in diabetic patients may be responsible for glycogen accumulation in neoplastic cells resulting in clear-cell appearance of these neoplasms.
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Affiliation(s)
- L Requena
- Department of Dermatology, Fundación Jiménez Díaz, Universidad Autónoma, Madrid, Spain
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SIGNORETTI S, ANNESSI G, OCCHIUTO S, RUATTI P, FARAGGIANA T. Papular clear cell hyperplasia of the eccrine duct in a diabetic. Br J Dermatol 1996. [DOI: 10.1111/j.1365-2133.1996.tb03627.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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31
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Abstract
A histologically unique condition of the sweat duct was found in a miliaria-like papular eruption on the extensor surfaces of extremities of a 41-year-old female patient. The hypertrophic epithelium of the sweat duct wall consisted of extensively vacuolated clear cells. There was mild hyperkeratosis around the sweat duct orifice. The eccrine gland cells showed only partial vacuolization. Since this condition is not related to any of the other known benign changes of the eccrine duct, we report it with a presumptive descriptive diagnosis of eruptive clear cell hamartoma of sweat duct.
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Affiliation(s)
- S Izaki
- Department of Dermatology, Saitama Medical Center, Saitama Medical School, Kawagoe, Japan
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Elberg JJ, Poulsen H, Ladefoged C. The influence of resection margin on prognosis in clinical stage I malignant melanoma of the lower leg. SCANDINAVIAN JOURNAL OF PLASTIC AND RECONSTRUCTIVE SURGERY AND HAND SURGERY 1989; 23:59-63. [PMID: 2740849 DOI: 10.3109/02844318909067511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The incidence of local recurrence and cumulative survival rate were compared for two groups of patients with stage I malignant melanoma of the lower leg. Group 1 included 119 patients treated from 1964 to 1978 with a wide local excision extending to the ankle. Group 2 included 58 patients treated from 1978 to 1981 with a 5 cm incision margin in all directions. Lesions within both groups were comparable based on measurements of tumor thickness. However, level of invasion indicated significantly more advanced lesions in the first group. Risk of local recurrence was related to thickness and ulceration. There were no statistically significant differences in frequency of local recurrences or cumulative survival rates between the two groups.
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Affiliation(s)
- J J Elberg
- Department of Plastic Surgery, Odense University Hospital, Denmark
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Barnadas MA, Freeman RG. Clear cell basal cell epithelioma: light and electron microscopic study of an unusual variant. J Cutan Pathol 1988; 15:1-7. [PMID: 3351059 DOI: 10.1111/j.1600-0560.1988.tb00507.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
We report the light and electron microscopic study of 7 examples of an unusual clear cell variant of basal cell epithelioma (BCE). The clear cells show cytoplasmic vacuoles that contain glycogen but do not stain with mucicarmine or fat stains. By electron microscopy the cytoplasmic vacuoles consist of empty spaces not surrounded by membranes. The clear cell pattern may occupy all or part of a given tumor. Typical nodular BCE was found in all 7 cases, but not in every section. Some nodules were composed of mixed solid and clear cell types. Differentiation of this uncommon variant from other clear cell tumors is important.
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Affiliation(s)
- M A Barnadas
- Department of Pathology, University of Texas Health Sciences at Dallas
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