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Hu C, Liu Y, Lin L, Yuan C, Ma D, Huang Q. Pathogenic Somatic Mutation of DICER1 and Clinicopathological Features in Nasal Chondromesenchymal Hamartomas: A Series of Nine Cases. Am J Surg Pathol 2024; 48:588-595. [PMID: 38357912 DOI: 10.1097/pas.0000000000002192] [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: 02/16/2024]
Abstract
Nasal chondromesenchymal hamartoma (NCMH) is a rare benign polypoid mesenchymal tumor arising in the nasal cavity and/or paranasal sinuses. Recognizing these sporadic, rare lesions is crucial, as surgical complete removal of the mass is the common treatment approach. This retrospective study analyzed the demographics, symptoms, and imaging data of 9 patients diagnosed with NCMH between January 2017 and June 2023, possibly representing the largest single-center adult case cohort to date. Diagnostic techniques included nasal endoscopy, CT/MRI scan, immunohistological studies, and morphologic comparisons. Pathologic specimens were subjected to Sanger sequencing of exons 24 and 25 of DICER1. The average age of 9 cases was 24.4 years, and the oldest was 55 years. Four of the patients were children, ranging from 1 year old to 11 years old, with an average of 4.5 years. Nasal congestion is the most common registered symptom. Endoscopic findings showed that most patients had smooth pink neoplasms or polypoid masses in the nasal meatus. Radiologic scanning revealed soft-tissue density masses that occupied the nasal cavity. Histologically, the characteristic structure of NCMHs is immature cellular cartilage nodules and mature cartilage nodules distributed in a loose mucoid matrix. Five of the 9 patients had somatic DICER1 missense mutations. Four of the patients with DICER1-mutated NCMH exhibited a p.E1813 missense hotspot mutation. We also report a case of a rare p.P1836H missense mutation. The detected DICER1 somatic mutations provide compelling evidence of an association with the DICER1 tumor family. We emphasize the importance of pathologic consultation and the need for pathologists to accumulate experience in NCMH diagnosis to avoid misdiagnosis.
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Affiliation(s)
- Chunyan Hu
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yifeng Liu
- Department of Pathology, Eye and ENT Hospital, Fudan University, Shanghai, China
| | - Lan Lin
- Department of Pathology, Eye and ENT Hospital, Fudan University, Shanghai, China
| | - Cuncun Yuan
- Department of Pathology, Eye and ENT Hospital, Fudan University, Shanghai, China
| | - Duan Ma
- Department of Biochemistry and Molecular Biology, Key Laboratory of Metabolism and Molecular Medicine, Ministry of Education, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qiang Huang
- Department of Otorhinolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, China
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何 引, 殷 海, 吴 家, 郑 文. [Clinical study of endoscopic surgery for recurrent nasopharyngeal carcinoma]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 37:771-777. [PMID: 37828878 PMCID: PMC10803229 DOI: 10.13201/j.issn.2096-7993.2023.10.002] [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] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Indexed: 10/14/2023]
Abstract
Objective:To compare the clinical effects and complications of surgery + chemotherapy and radiotherapy + chemotherapy in patients with nasopharyngeal carcinoma recurrence, so as to compare the safety and efficacy of two different therapeutic methods. Methods:A retrospective analysis was performed on 40 patients with recurrent nasopharyngeal carcinoma after radiotherapy and chemotherapy admitted to our hospital from January 2016 to June 2020. Among them, 26 patients were treated with surgery. The recurrent tumor was removed under nasal endoscope, and the frozen resection margin was negative during the operation. Chemotherapy was continued for stage Ⅲ and Ⅳ patients from 3 to 5 weeks after surgery. Fourteen patients received secondary radiotherapy and chemotherapy. Postoperative complications and survival rate were observed. Results:There were 14 patients in the secondary chemoradiotherapy group(control group) and 26 patients in the nasal endoscopic surgery group(observation group). Among the 26 patients, 19 patients underwent nasal septal mucosal repair, 5 patients underwent temporal muscle flap repair, 2 patients underwent submental flap repair, 2 patients had nasal septal mucosal flap necrosis and cerebrospinal fluid leakage, and the temporal muscle flap was used for secondary repair in the second stage operation, and 8 patients needed cervical lymph node dissection. The patients recovered well after surgery, and the patients in stage Ⅲ and Ⅳ were treated with chemotherapy after 3 weeks to 5 weeks according to the patient's wound condition. There were significant differences in the incidence of complications and 1-, 2-, and 3-year survival rates between the two groups(P<0.05). Conclusion:Patients with recurrent nasopharyngeal carcinoma can be treated by nasal endoscopic surgery to remove the tumor, and the use of pedicled nasal septal mucosal flap or temporal muscle flap for skull base reconstruction, The operation can effectively prevent major complications such as internal carotid artery rupture and hemorrhage, and improve the survival rate and quality of life of patients. It provides a safe and effective treatment for patients with recurrent nasopharyngeal carcinoma.
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Affiliation(s)
- 引 何
- 贵港市人民医院耳鼻咽喉头颈外科(广西贵港,537100)Department of Otorhinolaryngology Head and Neck Surgery, Guigang People's Hospital, Guigang, 537100, China
| | - 海 殷
- 贵港市人民医院耳鼻咽喉头颈外科(广西贵港,537100)Department of Otorhinolaryngology Head and Neck Surgery, Guigang People's Hospital, Guigang, 537100, China
| | - 家森 吴
- 贵港市人民医院耳鼻咽喉头颈外科(广西贵港,537100)Department of Otorhinolaryngology Head and Neck Surgery, Guigang People's Hospital, Guigang, 537100, China
| | - 文 郑
- 贵港市人民医院耳鼻咽喉头颈外科(广西贵港,537100)Department of Otorhinolaryngology Head and Neck Surgery, Guigang People's Hospital, Guigang, 537100, China
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Mo C, van der Kraaij GE, van der Leest RJT. [A man with a rare disfiguring cutaneous manifestation of sarcoidosis]. Ned Tijdschr Geneeskd 2022; 166:D6573. [PMID: 35899722] [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: 06/15/2023]
Abstract
A 42-year-old man with no relevant medical history presented with a painless, red, disfiguring skin lesion located on the nose. He was diagnosed with lupus pernio, a rare, cutaneous subtype of sarcoidosis which is relatively resistant to therapy and is associated with systemic sarcoidosis.
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Affiliation(s)
- Caro Mo
- UWV, afd. Sociaal medische zaken, Arnhem
- Contact: Mo
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Farina J, Broggi G, Federico C, Zanelli M, Palicelli A, Caltabiano R. Eosinophilic Angiocentric Fibrosis of the Nasal Cavities: A Report of an Uncommon Lesion with Emphasis on the Etiology and Differential Diagnosis. Medicina (B Aires) 2022; 58:medicina58070865. [PMID: 35888584 PMCID: PMC9319830 DOI: 10.3390/medicina58070865] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 01/13/2023] Open
Abstract
Background and Objectives: Eosinophilic angiocentric fibrosis (EAF) is an indolent but sometimes locally destructive lesion with a predilection for the sinonasal tract. Although it was first described in 1983, its etiology remains unknown. Some authors initially attributed EAF to trauma, hypersensitivity, and/or surgical manipulation, while it has been recently suggested to include EAF within the spectrum of IgG4-related systemic diseases. Materials and Methods: We report an uncommon case of idiopathic EAF in a 76-year-old male who developed two bilateral tumefactive masses in the nasal cavities. Results: As the histological examination showed a subepithelial proliferation of fibroblasts along with sclero-hyaline fibrosis around small-sized vessels (an “onion skin-like” pattern) and an eosinophils-rich inflammatory infiltrate, a diagnosis of EAF was rendered. The differential diagnosis included granuloma faciale, Wegener’s granulomatosis, and Churg–Strauss syndrome. Conclusions: Pathologists should be aware of the possibility that this lesion can be part of the wide spectrum of IgG4-related systemic diseases by performing IgG4 investigations to assess adherence to IgG4-related systemic disease criteria.
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Affiliation(s)
- Jessica Farina
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Anatomic Pathology, University of Catania, 95123 Catania, Italy; (J.F.); (R.C.)
| | - Giuseppe Broggi
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Anatomic Pathology, University of Catania, 95123 Catania, Italy; (J.F.); (R.C.)
- Correspondence:
| | - Carmelo Federico
- Otorhinolaryngology Unit, Casa di Cura Gibiino, 95128 Catania, Italy;
| | - Magda Zanelli
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.Z.); (A.P.)
| | - Andrea Palicelli
- Pathology Unit, Azienda USL-IRCCS di Reggio Emilia, 42123 Reggio Emilia, Italy; (M.Z.); (A.P.)
| | - Rosario Caltabiano
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Anatomic Pathology, University of Catania, 95123 Catania, Italy; (J.F.); (R.C.)
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Cereceda-Monteoliva N, Rouhani MJ, Maughan EF, Rotman A, Orban N, Al Yaghchi C, Sandhu G. Sarcoidosis of the ear, nose and throat: A review of the literature. Clin Otolaryngol 2021; 46:935-940. [PMID: 34051056 DOI: 10.1111/coa.13814] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 12/21/2020] [Revised: 03/26/2021] [Accepted: 05/09/2021] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Sarcoidosis is a multisystemic inflammatory disease with extrathoracic manifestations, most commonly affecting the young and middle-aged, female and Black populations. Diagnosis usually requires evidence of non-caseating granulomata and, when treated, prognosis is usually favourable. We aim to establish the incidence, clinical features and optimal treatment of ENT manifestations of this disease. DESIGN We performed a PubMed literature review to determine the evidence base supporting this. RESULTS ENT manifestations are present in 5%-15% of patients with sarcoidosis, often as a presenting feature, and require vigilance for swift recognition and coordinated additional treatment specific to the organ. Laryngeal sarcoidosis presents with difficulty in breathing, dysphonia and cough, and may be treated by speech and language therapy (SLT) or intralesional injection, dilatation or tissue reduction. Nasal disease presents with crusting, rhinitis, nasal obstruction and anosmia, usually without sinus involvement. It is treated by topical nasal or intralesional treatments but may also require endoscopic sinus surgery, laser treatment or even nasal reconstruction. Otological disease is uncommon but includes audiovestibular symptoms, both sensorineural and conductive hearing loss, and skin lesions. CONCLUSIONS The consequences of ENT manifestations of sarcoidosis can be uncomfortable, disabling and even life-threatening. Effective management strategies require good diagnostic skills and use of specific therapies combined with established treatments such as corticosteroids. Comparisons of treatment outcomes are needed to establish best practice in this area.
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Affiliation(s)
| | - Maral J Rouhani
- Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | | | - Anthony Rotman
- Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Nara Orban
- Royal London Hospital, Barts Health NHS Trust, London, UK
| | - Chadwan Al Yaghchi
- Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
| | - Guri Sandhu
- Charing Cross Hospital, Imperial College Healthcare NHS Trust, London, UK
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Nelwan EJ, Tunjungputri RN, Wardani RS, Wahyuningsih R. Black Fungus Complicated with COVID-19 in a Man with Underlying Non-Hodgkin's Lymphoma. Acta Med Indones 2021; 53:349-351. [PMID: 34611076] [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] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
COVID-19 is a disease reported to suppress cellular immunity. This may lead to the development of opportunistic infections, among others black fungus, or mucormycosis. On the other hand, pre-existing defect in immunity may render patients susceptible to both mucormycosis and COVID-19. Mucormycosis is a relatively rare fungal infection with rapid progression unless diagnosed promptly and treated adequately, and urgent surgical and medical intervention is lifesaving. The manifestation of mucormycosis largely depends on the presence of exposure to the pathogen and the existing risk factor of the host. As black fungus is locally invasive, the majority of cases will involve tissue damage with local destruction and contiguous spread to nearby structure. We here with present a case of black fungus complicated with COVID-19 in a man with underlying non-Hodgkin's lymphoma.
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Affiliation(s)
- Erni J Nelwan
- 1. Division of Tropical and Infectious Disease. Department of Internal Medicine, Faculty of Medicine Universitas Indonesia - Cipto Mangunkusumo Hospital, Jakarta, Indonesia. 2. Department of Internal Medicine, Faculty of Medicine Universitas Indonesia - Cipto Mangunkusumo Hospital, Jakarta, Indonesia.
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Buzi C, Micarelli I, Paine RR, Profico A, Messineo D, Tafuri MA, Manzi G. Digital imaging techniques applied to a case of concha bullosa from an early medieval funerary area in central Italy. Int J Paleopathol 2020; 31:71-78. [PMID: 33096378 DOI: 10.1016/j.ijpp.2020.10.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 06/03/2020] [Revised: 10/02/2020] [Accepted: 10/02/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVE Concha bullosa is a rather common condition of the nasal turbinates, rarely reported in archaeological skeletal collections. This paper examines a case of concha bullosa as seen in a female cranium from a burial in central Italy, dated to the Longobard domination in the Peninsula (mid-7th- early 8th century CE). MATERIALS The individual under investigation (T86/17) comes from the funerary area of Selvicciola, located near the town of Viterbo in northern Latium, Italy. METHODS The skeleton was macroscopically examined. We analyzed the CT-scans of the defect by applying innovative R-based virtual tools. RESULTS It was possible to calculate the inner volume of the concha bullosa and to provide a 3D visual assessment of its shape. CONCLUSIONS Its size and shape suggest that the individual had this condition for a considerable period of time, during which its presence may have had affected her daily activities and health status. SIGNIFICANCE An under-represented paleopathological defect is examined for the first time through a virtual approach aimed at visualizing its shape and the assessment of its volume. New methods of 3D based virtual assessment can increase the informative value of defects. SUGGESTIONS FOR FURTHER RESEARCH Techniques used in this assessment should be considered as an evaluative tool for other conditions when macroscopic and radiographic imaging are limited.
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Affiliation(s)
- Costantino Buzi
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Ileana Micarelli
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Roma, Italy.
| | - Robert R Paine
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Antonio Profico
- PalaeoHub, Department of Archaeology, University of York, Wentworth Way, YO105DD, York, UK
| | - Daniela Messineo
- Department of Radiological, Oncological, and Anatomo-Pathological Sciences, Sapienza University of Rome, Viale del Policlinico, 155, 00161, Roma, Italy
| | - Mary Anne Tafuri
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Roma, Italy
| | - Giorgio Manzi
- Department of Environmental Biology, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185, Roma, Italy
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Saenz-Ibarra B, Ceceñas-Falcon LA, Cardenas-De la Garza JA, Garza-Elizondo MA, De Hoyos R, Dieste M, Barboza-Quintana O. Nasal eosinophilic angiocentric fibrosis with IgG4-positive plasma cell infiltration. Malays J Pathol 2020; 42:137-141. [PMID: 32342944] [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: 06/11/2023]
Abstract
INTRODUCTION Eosinophilic angiocentric fibrosis (EAF) is a rare lesion that predominantly affects the upper respiratory tract. Its etiology is unknown and it has been recently associated with the IgG4- related disease (IgG4-RD) spectrum. To the author's knowledge, this is the sixth case report of the relationship between EAF and IgG4-RD. CASE REPORT We report the case of a 37-year-old woman with nasal deformity and facial pain. The lesion was surgically excised. Histological examination revealed features of EAF with an IgG4/IgG plasma cell ratio ≷73% and 31 IgG4 stained cells per high power field. No clinical or radiological recurrence was detected during follow-up. Serum IgG4 quantification one year after surgery was within normal limits. DISCUSSION The relationship between both entities may have therapeutic impact because IgG4-RD of the head and neck has a high remission rate with corticosteroids and immunosuppressive therapy. Additional reports of this infrequent disease are necessary to elucidate appropriate treatment and prognosis.
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Affiliation(s)
- B Saenz-Ibarra
- University Hospital Dr. Jose Eleuterio Gonzalez UANL, Anatomical Pathology and Cytopathology Department, Francisco I. Madero y Gonzalitos S/N, 64460 Monterrey, Nuevo Leon, Mexico.
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Bannoehr J, Balmer P, Stoffel MH, Jagannathan V, Gaschen V, Kühni K, Sayar B, Drögemüller M, Howald D, Wiener DJ, Leeb T, Welle MM, Müller EJ, Roosje PJ. Abnormal keratinocyte differentiation in the nasal planum of Labrador Retrievers with hereditary nasal parakeratosis (HNPK). PLoS One 2020; 15:e0225901. [PMID: 32119674 PMCID: PMC7051081 DOI: 10.1371/journal.pone.0225901] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 11/14/2019] [Indexed: 01/16/2023] Open
Abstract
Hereditary nasal parakeratosis (HNPK) is an inherited disorder described in Labrador Retrievers and Greyhounds. It has been associated with breed-specific variants in the SUV39H2 gene encoding a histone 3 methyltransferase involved in epigenetic silencing. Formalin-fixed biopsies of the nasal planum of Labrador Retrievers were screened by immunofluorescence microscopy for the presence and distribution of epidermal proliferation and differentiation markers. Gene expression of these markers was further analysed using RNA sequencing (RNA-seq) and ultrastructural epidermal differences were investigated by electron microscopy. Differentiation of the nasal planum in the basal and suprabasal epidermal layers of HNPK-affected dogs (n = 6) was similar compared to control dogs (n = 6). In the upper epidermal layers, clear modifications were noticed. Loricrin protein was absent in HNPK-affected nasal planum sections in contrast to sections of the same location of control dogs. However, loricrin was present in the epidermis of paw pads and abdominal skin from HNPK dogs and healthy control dogs. The patterns of keratins K1, K10 and K14, were not markedly altered in the nasal planum of HNPK-affected dogs while the expression of the terminal differentiation marker involucrin appeared less regular. Based on RNA-seq, LOR and IVL expression levels were significantly decreased, while KRT1, KRT10 and KRT14 levels were up-regulated (log2fold-changes of 2.67, 3.19 and 1.71, respectively) in HNPK-affected nasal planum (n = 3) compared to control dogs (n = 3). Electron microscopical analysis revealed structural alterations in keratinocytes and stratum corneum, and disrupted keratinocyte adhesions and distended intercellular spaces in lesional samples (n = 3) compared to a sample of a healthy control dog (n = 1). Our findings demonstrate aberrant keratinocyte terminal differentiation of the nasal planum of HNPK-affected Labrador Retrievers and provide insights into biological consequences of this inactive SUV39H2 gene variant.
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Affiliation(s)
- Jeanette Bannoehr
- Division of Clinical Dermatology, Department of Clinical Veterinary Science, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Pierre Balmer
- Division of Clinical Dermatology, Department of Clinical Veterinary Science, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Michael H. Stoffel
- Division of Veterinary Anatomy, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Vidhya Jagannathan
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Véronique Gaschen
- Division of Veterinary Anatomy, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Kathrin Kühni
- Division of Veterinary Anatomy, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Beyza Sayar
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Department of Clinical Research, Molecular Dermatology and Stem Cell Research, University of Bern, Bern, Switzerland
| | | | - Denise Howald
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Dominique J. Wiener
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Tosso Leeb
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Monika M. Welle
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Eliane J. Müller
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Department of Clinical Research, Molecular Dermatology and Stem Cell Research, University of Bern, Bern, Switzerland
- Clinic for Dermatology, Inselspital, Bern University Hospital, Bern, Switzerland
| | - Petra J. Roosje
- Division of Clinical Dermatology, Department of Clinical Veterinary Science, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- DermFocus, Vetsuisse Faculty, University of Bern, Bern, Switzerland
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Place DE, Briard B, Samir P, Karki R, Bhattacharya A, Guy CS, Peters JL, Frase S, Vogel P, Neale G, Yamamoto M, Kanneganti TD. Interferon inducible GBPs restrict Burkholderia thailandensis motility induced cell-cell fusion. PLoS Pathog 2020; 16:e1008364. [PMID: 32150572 PMCID: PMC7082077 DOI: 10.1371/journal.ppat.1008364] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 03/19/2020] [Accepted: 01/29/2020] [Indexed: 12/20/2022] Open
Abstract
Innate immunity responds to pathogens by producing alarm signals and activating pathways that make host cells inhospitable for pathogen replication. The intracellular bacterium Burkholderia thailandensis invades the cytosol, hijacks host actin, and induces cell fusion to spread to adjacent cells, forming multinucleated giant cells (MNGCs) which promote bacterial replication. We show that type I interferon (IFN) restricts macrophage MNGC formation during B. thailandensis infection. Guanylate-binding proteins (GBPs) expressed downstream of type I IFN were required to restrict MNGC formation through inhibition of bacterial Arp2/3-dependent actin motility during infection. GTPase activity and the CAAX prenylation domain were required for GBP2 recruitment to B. thailandensis, which restricted bacterial actin polymerization required for MNGC formation. Consistent with the effects in in vitro macrophages, Gbp2-/-, Gbp5-/-, GbpChr3-KO mice were more susceptible to intranasal infection with B. thailandensis than wildtype mice. Our findings reveal that IFN and GBPs play a critical role in restricting cell-cell fusion and bacteria-induced pathology during infection.
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Affiliation(s)
- David E. Place
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Benoit Briard
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Parimal Samir
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Rajendra Karki
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Anannya Bhattacharya
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Clifford S. Guy
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Jennifer L. Peters
- Cell and Tissue Imaging Center, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Sharon Frase
- Cell and Tissue Imaging Center, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Peter Vogel
- Veterinary Pathology Core, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Geoffrey Neale
- Hartwell Center for Bioinformatics & Biotechnology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Masahiro Yamamoto
- Department of Immunoparasitology, Osaka University, 3–1 Yamadaoka, Suita, Osaka, Japan
| | - Thirumala-Devi Kanneganti
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
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Abstract
INTRODUCTION Benign fibrous histiocytoma (BFH) is a mesenchymal tumor composed of fibroblasts and histiocytes, which normally occurs in the bone tissue and/or the skin of the limbs. BFH of the nasal septum is rare worldwide. PATIENT CONCERNS A 38-year-old female patient attended our clinic with congestion in her right nasal cavity. DIAGNOSES Endoscopic examination revealed a mass within the right nasal passage. Immunohistochemical staining demonstrated cells labeled with VIM (+), CD68PGM1 (+), CD34 (-), Actin (-), PCK (-), EMA (-), Desmin (-), SMA (-), S-100 (-), P63 (-), ALK-1 (-), beta-catenia (+), and KI67 (+). Clinical and histopathological examinations showed that the mass was a septum-originated BFH. INTERVENTIONS For the treatment of BFH of the nasal septum, the mass was removed endoscopically using a transnasal approach. OUTCOMES No recurrence was observed over 30 months of follow-up. CONCLUSION To prevent the recurrence wide local resection with histological clear margin and long-term follow-up with an endoscope are necessary.
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Affiliation(s)
- Zhixian Xiao
- Department of Otolaryngology, Chengdu University of Traditional Chinese Medicine
| | - Li Zhou
- Department of Otolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine
| | - Lian Xu
- Department of Pathology, West China Second University Hospital, Sichuan University
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, China
| | - Fangqi Liang
- Department of Otolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine
| | - Li Tian
- Department of Otolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine
| | - Luyun Jiang
- Department of Otolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine
| | - Guowei Ren
- Department of Otolaryngology, Chengdu University of Traditional Chinese Medicine
| | - Jianhong Deng
- Department of Otolaryngology, Hospital of Chengdu University of Traditional Chinese Medicine
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Affiliation(s)
- Chirom A Singh
- All India Institute of Medical Sciences, New Delhi, India
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Abstract
RATIONALE Seromucinous hamartoma is a rare benign glandular proliferation of the sinonasal tract and nasopharynx, and the majority of lesions occur on the posterior nasal septum. PATIENT CONCERNS The patient had complaints of rhinorrhea, sneezing, and itching for a number of years, and recurrent right nasal bleeding for which the patient underwent endoscopic removal of a right inferior turbinate tumor. The biopsy result was low-grade, non-intestinal type adenocarcinoma, and the patient was referred to our hospital. DIAGNOSIS AND INTERVENTIONS An endoscopic medial maxillectomy of the right nasal cavity was performed. The histopathological analysis of the nasal mass revealed a seromucinous (glandular) hamartoma. OUTCOMES The postoperative course was unremarkable. The patient has been followed up regularly for 1 year with no additional treatment and no recurrence. LESSONS Seromucinous hamartoma of the nasal cavity is extremely rare, especially in anterior portion of nasal cavity. It is important to distinguish seromucinous hamartoma from adenocarcinoma and to maintain regular long-term follow-up.
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Belda B, Petrovitch N, Mathews KG. Sinonasal aspergillosis: Outcome after topical treatment in dogs with cribriform plate lysis. J Vet Intern Med 2018; 32:1353-1358. [PMID: 29957889 PMCID: PMC6060319 DOI: 10.1111/jvim.15219] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 03/29/2018] [Accepted: 04/25/2018] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Cribriform lysis has been considered a contraindication for topical treatment of sinonasal aspergillosis (SNA) because of concerns about drug extravasation with resultant neurologic signs or death. OBJECTIVE/HYPOTHESIS To describe dogs with SNA and cribriform plate lysis treated with topical antifungal medications. Our hypothesis was that the conventional dogma that topical therapy should be avoided in these cases is incorrect. ANIMALS Nine client-owned dogs with SNA and lysis of the cribriform plate, lysis of the floor of a frontal sinus or both detected by computed tomography (CT). METHODS A retrospective review of medical records was performed. Dogs that met inclusion criteria (ie, SNA confirmed by at least 1 laboratory test, braincase affected on CT, and topical treatment applied) were included. Size of lesions, ancillary diagnostic test results, topical therapy, and adjuvant PO treatments were recorded. Outcome was determined by phone calls. RESULTS Four dogs were alive at the time of the manuscript submission with follow-up ranging from 188 to 684 days without neurological signs observed. All dogs were discharged without major complication 1-7 days postoperatively. One dog that had presented with a history of seizures experienced seizure activity 2 months after treatment. CONCLUSIONS AND CLINICAL IMPORTANCE Topical therapy did not result in complications in these dogs in which lytic regions as large as 16 × 22 mm2 were noted. Sinonasal aspergillosis associated lysis of the cribriform plate; lysis of the floor of a frontal sinus or both detected on CT is not necessarily a contraindication to topical therapy.
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Affiliation(s)
- Beatriz Belda
- Department of Clinical SciencesCollege of Veterinary Medicine, North Carolina State UniversityRaleighNorth Carolina
| | - Nicholas Petrovitch
- Department of Molecular Biomedical SciencesCollege of Veterinary Medicine, North Carolina State UniversityRaleighNorth Carolina
| | - Kyle G. Mathews
- Department of Clinical SciencesCollege of Veterinary Medicine, North Carolina State UniversityRaleighNorth Carolina
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Abstract
The so-called nasal gliomas (nasal cerebral heterotopias) are rare, congenital, benign masses of neurogenic origin with intra or extranasal location, or both. An intranasal case is reported in a 7-month-old infant who successfully underwent surgery with the intranasal approach. The tumor had no intracranial extension and the child is free of disease after a three-year follow-up. Immunohistochemical study confirmed the glial (GFAP+) and neuronal (NSE+) nature of the cells composing the mass. In addition to the clinical behavior, the benign nature of the tumor is also indicated by the negativity of Ki67 (MIB-1) and p53 proliferation markers as well as by CD44 negativity. As far as we know, this is the first reported case of nasal glioma subjected to immunohistochemical investigation of proliferation activity.
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Affiliation(s)
- M Dini
- Cattedra di Chirurgia Plastica e Ricostruttiva, Università degli Studi di Firenze, Florence, Italy
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Fizzano KM, Claude AK, Kuo LH, Eells JB, Hinz SB, Thames BE, Ross MK, Linford RL, Wills RW, Olivier AK, Archer TM. Evaluation of a modified infraorbital approach for a maxillary nerve block for rhinoscopy with nasal biopsy of dogs. Am J Vet Res 2017; 78:1025-1035. [PMID: 28836847 DOI: 10.2460/ajvr.78.9.1025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine whether a maxillary nerve block via a modified infraorbital approach, applied before rhinoscopy and nasal biopsy of dogs, would decrease procedural nociception, minimize cardiorespiratory anesthetic effects, and improve recovery quality. ANIMALS 8 healthy adult hound-type dogs PROCEDURES In a crossover study, dogs received 0.5% bupivacaine (0.1 mL/kg) or an equivalent volume of saline (0.9% NaCl) solution as a maxillary nerve block via a modified infraorbital approach. A 5-cm, 20-gauge over-the-needle catheter was placed retrograde within each infraorbital canal, and bupivacaine or saline solution was administered into each pterygopalatine region. Rhinoscopy and nasal biopsy were performed. Variables monitored included heart rate, systolic arterial blood pressure (SAP), mean arterial blood pressure (MAP), diastolic arterial blood pressure (DAP), plasma cortisol and norepinephrine concentrations, purposeful movement, and pain scores. After a 14-day washout period, the other treatment was administered on the contralateral side, and rhinoscopy and nasal biopsy were repeated. RESULTS SAP, MAP, and DAP were significantly higher for the saline solution treatment than for the bupivacaine treatment, irrespective of the time point. Plasma cortisol concentrations after saline solution treatment were significantly higher 5 minutes after nasal biopsy than at biopsy. Heart rate, norepinephrine concentration, purposeful movement, and pain score were not significantly different between treatments. CONCLUSIONS AND CLINICAL RELEVANCE Maxillary nerve block via a modified infraorbital approach prior to rhinoscopy and nasal biopsy reduced procedural nociception as determined on the basis of blood pressures and plasma cortisol concentrations during anesthesia. These findings warrant further evaluation in dogs with nasal disease.
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Flyer TF, Godballe C. [Not Available]. Ugeskr Laeger 2017; 179:V69257. [PMID: 29429472] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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18
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Zhang C, Goldscheider I, Ruzicka T, Sárdy M. Pemphigus Vulgaris Persistently Localized to the Nose with Local and Systemic Response to Topical Steroids. Acta Derm Venereol 2017; 97:1136-1137. [PMID: 28597020 DOI: 10.2340/00015555-2725] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 11/16/2022] Open
Abstract
is missing (Short communication).
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Affiliation(s)
- Connie Zhang
- Division of Dermatology, University of Calgary, Richmond Road Diagnostic and Treatment Centre, 1820 Richmond Road SW, T2T 5C7 Calgary, Canada.
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19
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Abstract
RATIONALE Relapsing polychondritis (RP) is a multisystemic, progressive disease of unknown etiology characterized by recurrent inflammation and progressive cartilage destruction. It can involve all types of cartilage including ears and nose, tracheobronchial tree, joints, and any other tissue rich in proteoglycans such as heart, eyes, and blood vessels. Recurrent chondritis can be life-threatening if the respiratory tract, heart valves, or blood vessels are affected. To date there is no data in the literature on the post solid organ transplantation RP. PATIENT CONCERNS We present a 59-year-old male liver transplant recipient with primary sclerosing cholangitis who developed RP of the earlobes and nose despite post-transplant immunosuppression. DIAGNOSES Based on the clinical criteria, scintigraphy and biopsy from the left auricle his condition was diagnosed as RP. INTERVENTIONS Pulses of methylprednisolone followed by high-dose oral steroids along with azathioprine were administered. OUTCOMES Such therapy diminished local cartilage inflammation, improved patient's general condition and the laboratory results. Significant loss of ear cartilage and characteristic "saddlenose" were observed after remission of acute symptoms. The control scintigraphy proved very good treatment response. LESSONS To the best of our knowledge this is the first report on the RP in liver transplant recipient. Based on our patient presentation, we suggest that RP should be suspected in any transplant recipient with cartilage inflammation, and that the Michet's clinical criteria and scintigraphy seem to be the best diagnostic tools for solid organ transplant recipients suspected of RP.
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Affiliation(s)
- Anna Mydlak
- Department of Cranio-Maxillofacial Surgery, Oral Surgery and Implantology, Medical University of Warsaw
| | - Dariusz Sołdacki
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw
| | - Bartosz Foroncewicz
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw
| | - Zygmunt Stopa
- Department of Cranio-Maxillofacial Surgery, Oral Surgery and Implantology, Medical University of Warsaw
| | | | - Tadeusz Budlewski
- Nuclear Medicine Unit, Department of Diagnostic Radiology, Central Clinical Hospital Ministry of Internal Affairs
| | - Leszek Pączek
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | - Krzysztof Mucha
- Department of Immunology, Transplantology and Internal Diseases, Medical University of Warsaw
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
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Peris Celda M, Kenning T, Pinheiro-Neto CD. Endoscopic Superior Ethmoidal Approach for Anterior Cranial Base Resection: Tailoring the Approach for Maximum Exposure with Preservation of Nasal Structures. World Neurosurg 2017; 104:311-317. [PMID: 28465271 DOI: 10.1016/j.wneu.2017.04.148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 03/12/2017] [Revised: 04/21/2017] [Accepted: 04/22/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND Traditional endoscopic anterior cranial base resection involves the total removal of the ethmoidal cells, including the middle and superior turbinates. This is associated with increased volume of the nasal cavity postoperatively, with increased crusting and permanent change of the nasal airflow. Here we provide a step-by-step description of the technique and evaluate the feasibility of the superior ethmoidal approach for anterior cranial base resection with maximum exposure of the anterior cranial base while keeping the middle turbinates, uncinate processes, and ostiomeatal complexes intact. METHODS Three fresh cadaveric heads were used for dissections. This technique was successfully performed in 2 consecutive cases of large olfactory groove meningiomas. RESULTS In all anatomic dissections, satisfactory exposure of the cranial base was achieved while keeping the middle turbinate, uncinate process, ethmoid bulla, and middle meatus intact bilaterally. Successful resection of 2 consecutive cases of olfactory groove meningioma was performed using this approach. CONCLUSIONS The endoscopic superior ethmoidal approach for anterior cranial base resection is a feasible and safe approach that maximizes preservation of the nasal structures while providing optimal access to the anterior skull base. It can be used in pathologies that involve the anterior cranial base and do not involve the nasal structures.
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Affiliation(s)
- Maria Peris Celda
- Department of Neurosurgery, Albany Medical Center, Albany, New York, USA
| | - Tyler Kenning
- Department of Neurosurgery, Albany Medical Center, Albany, New York, USA
| | - Carlos D Pinheiro-Neto
- Division of Otolaryngology/Head and Neck Surgery, Department of Surgery, Albany Medical Center, Albany, New York, USA.
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22
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Kuhlman GM, Taylor AR, Thieman-Mankin KM, Griffin J, Cook AK, Levine JM. Use of a frameless computed tomography-guided stereotactic biopsy system for nasal biopsy in five dogs. J Am Vet Med Assoc 2016; 248:929-34. [PMID: 27031420 DOI: 10.2460/javma.248.8.929] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CASE DESCRIPTION 5 dogs (median age, 9 years; median body weight, 31 kg [68.2 lb]) with undefined nasal masses were examined after undergoing CT of the head and nasal biopsy via a rostral rhinoscopic or unaided (blind) approach because histologic results for collected biopsy specimens (inflammatory, necrotic, or hemorrhagic disease) suggested the specimens were nonrepresentative of the underlying disease process identified via CT (aggressive or malignant disease). CLINICAL FINDINGS Clinical signs at the time dogs were evaluated included open-mouth breathing, sneezing, or unilateral epistaxis. Histologic findings pertaining to the original biopsy specimens were suggestive of benign processes such as inflammation. In an attempt to obtain better representative specimens, a frameless CT-guided stereotactic biopsy system (CTSBS) was used to collect additional biopsy specimens from masses within the nasal and sinus passages of the dogs. The second set of biopsy specimens was histologically evaluated. TREATMENT AND OUTCOME Histologic evaluation of biopsy specimens collected via the CTSBS revealed results suggestive of malignant neoplasia (specifically, chondrosarcoma, hemangiopericytoma, or undifferentiated sarcoma) for 3 dogs, mild mixed-cell inflammation for 1 dog, and hamartoma for 1 dog. No complications were reported. These findings resulted in a change in treatment recommendations for 3 dogs and confirmed that no additional treatment was required for 1 dog (with hamartoma). For the remaining dog, in which CT findings and clinical history were strongly suggestive of neoplasia, the final diagnosis was rhinitis. CLINICAL RELEVANCE Biopsy specimens were safely collected from masses within the nasal and sinus passages of dogs by use of a frameless CTSBS, allowing a definitive diagnosis that was unachievable with other biopsy approaches.
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23
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Liao PH, Chang KP. Nasal gouty tophus. Ear Nose Throat J 2016; 95:478-480. [PMID: 27929594] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Affiliation(s)
- Pei-Hsun Liao
- Department of Otolaryngology, Head and Neck Surgery, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
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24
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Robledo J, Lussier JD. Oral and Maxillofacial Pathology Case of the Month: Nasopalatine Cyst. Tex Dent J 2016; 133:522-549. [PMID: 30549517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
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25
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Afridi JA, Manzoor F, Ahmed Butt KA, Janjua S. Nasal Pseudotumor in Female. J Coll Physicians Surg Pak 2016; 26:S63-S64. [PMID: 27376227] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Accepted: 09/21/2015] [Indexed: 06/06/2023]
Abstract
Inflammatory pseudotumor is a solid fibro-inflammatory tumor that clinically mimics a neoplastic lesion. Inflammatory pseudotumor is usually found in the orbits and lungs, but rarely in the sinonasal area. Presence of pseudotumor in nasal cavity is even scarce and there are only a few reports to date. We present a case of pseudotumor involving the nasal tip area in an adult female mimicking as a slowly enlarging mass.
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Affiliation(s)
| | - Faisal Manzoor
- Department of ENT, Combined Military Hospital (CMH), Gujranwala
| | | | - Sarfraz Janjua
- Department of Anaesthesia, Combined Military Hospital (CMH), Quetta
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27
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Koo SK, Moon JS, Jung SH, Mun MJ. A case of bilateral inferior concha bullosa connecting to maxillary sinus. Braz J Otorhinolaryngol 2016; 84:526-528. [PMID: 27133909 PMCID: PMC9449245 DOI: 10.1016/j.bjorl.2016.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/01/2016] [Accepted: 01/15/2016] [Indexed: 11/20/2022] Open
Affiliation(s)
- Soo Kweon Koo
- Busan Saint Mary's Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Busan, Republic of Korea.
| | - Ji Seung Moon
- Busan Saint Mary's Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Busan, Republic of Korea
| | - Sung Hoon Jung
- Busan Saint Mary's Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Busan, Republic of Korea
| | - Mi Jin Mun
- Busan Saint Mary's Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Busan, Republic of Korea
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Albergotti WG, Psaltis AJ, Schlosser RJ. Respiratory epithelial adenomatoid hamartoma of the olfactory groove: A report of 4 cases and a review of the literature. Ear Nose Throat J 2016; 95:E19-E27. [PMID: 26991225] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Respiratory epithelial adenomatoid hamartoma (REAH) is a rare benign lesion that affects the nasal cavity and paranasal sinuses. We present 4 cases of REAH that involved the olfactory clefts; 1 case was bilateral. Each of the cases was treated surgically, and no recurrence was observed. Most reports have indicated that REAH occurs in the presence of sinonasal inflammation, particularly nasal polyposis, yet all 4 of our cases occurred in the absence of concurrent rhinosinusitis. This suggests that the etiology of REAH is multifactorial. In addition, we review the literature on REAH, and we discuss its presentation, differential diagnosis, radiology, histopathology, and underlying treatment principles.
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Affiliation(s)
- William G Albergotti
- Department of Otolaryngology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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29
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van der Horst JC, Frunt MHA. [A woman with a non-healing wound on the nose]. Ned Tijdschr Geneeskd 2016; 160:D418. [PMID: 27438392] [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: 06/06/2023]
Abstract
A 57-year-old woman presented with a progressive ulceration of her left nasal ala. We made the diagnosis of trigeminal trophic syndrome. This rare disorder may develop after injury of the trigeminal nerve, which causes local paraesthesia. Subsequent manipulation - whether intentional or unintentional - results in ulceration.
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Motohashi M, Adachi M, Ijichi K, Muramatsu Y. Protrusion of nasal floor. N Z Med J 2015; 128:68-69. [PMID: 27377024] [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: 06/06/2023]
Affiliation(s)
| | - Makoto Adachi
- Department Oral and Maxillofacial Surgery, Division of Oral Pathogenesis and Disease Control, Asahi University, School of Dentistry, Hozumi 1851, Mizuho, Gifu 501-0296, Japan.
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Abstract
A 62-year-old female visited us complaining of lacrimination and the swelling of the left side of the nasal dorsum. Granulation tissues were seen on the anterior-lateral wall of the left nasal cavity, and an imaging study revealed a mass occupying both the left nasal cavity and the anterior ethmoid sinuses invading the face with erosion of the nasal bone. Histological examination showed an epithelioid granuloma without caseous necrosis which mostly suggested sarcoidosis. The affected lesions became larger 11 months after the initial examination, and a biopsy was performed again, which revealed the same pathological findings. Although the biopsy specimen was negative based on the PCR findings, tubercle bacillus was detected in the culture 7 weeks later. The patient was finally diagnosed as having primary tuberculosis of the nose and paranasal sinuses because systemic examination showed no evidence of tuberculosis in other areas. She was treated with antituberculosis medication, and the affected nasal lesions disappeared. It is important to perform a biopsy and tissue culture repeatedly when we encounter an intractable and undiagnosed disease in the nasal cavity.
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Lee CH, Park YH, Kim JY, Bae JH. Nasal chondromesenchymal hamartoma causing sleep-disordered breathing in an infant. Int J Clin Exp Pathol 2015; 8:9643-9646. [PMID: 26464731 PMCID: PMC4583963] [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] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 07/22/2015] [Indexed: 06/05/2023]
Abstract
Nasal chondromesenchymal hamartoma is an extremely rare neoplasm of the nasal and paranasal sinuses. We present the case of a 10-month-old boy with a huge nasal chondromesenchymal hamartoma that was complicated by sleep-disordered breathing. The mass was completely resected by image-guided endoscopic surgery and confirmed histopathologically as a chondromesenchymal hamartoma. In this report, we discuss the characteristics and treatment of this unusual tumor.
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Affiliation(s)
- Cha Hee Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Mokdong Hospital, Ewha Womans University School of Medicine Seoul, Korea
| | - Yun Hwi Park
- Department of Otorhinolaryngology-Head and Neck Surgery, Mokdong Hospital, Ewha Womans University School of Medicine Seoul, Korea
| | - Ju Yeon Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Mokdong Hospital, Ewha Womans University School of Medicine Seoul, Korea
| | - Jung Ho Bae
- Department of Otorhinolaryngology-Head and Neck Surgery, Mokdong Hospital, Ewha Womans University School of Medicine Seoul, Korea
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Haruna SI. [Prevention of complication after ESS procedure]. Nihon Jibiinkoka Gakkai Kaiho 2015; 118:736-744. [PMID: 26567388] [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: 06/05/2023]
Affiliation(s)
- Shin-ichi Haruna
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, University of Dokkyo Medical, Tochigi, Japan
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Ito T, Yoshida Y, Furue M, Yamamoto O. Dermoscopic features of polypoid epidermal cyst. Australas J Dermatol 2015; 55:e19-20. [PMID: 25879086 DOI: 10.1111/ajd.12031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Seabright A, Britt-Dewyer R. Painful purpura and cutaneous necrosis. Cutis 2015; 95:E1-E3. [PMID: 25942031] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
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36
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Mei Y, Zhao P. [Bilateral nasal vestibular cyst 1 case]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2014; 28:1899-1900. [PMID: 25980171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Patients with bilateral nasal vestibule area swelling of 1 week, no obvious pain and symptoms of nasal congestion, bilateral nasal vestibule area was highly uplifted, nostril was significantly smaller, both sides existed a palpable 2. 0 cm × 2. 2 cm and 2. 0 cm × 2. 0 cm cystic mass. Ultrasound showed both sides of the nasal bonehad cystic lesions. Sinus CT showed local quasicircular soft tissue shadow at the bottom of bilateral piriform aperture. The postoperative pathology report: the cystiform tissue is covered with squamous epithelium, infiltration of inflammatory cells could be seen and is consistent with the diagnosis of bilateral nasalvestibular cyst.
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da Costa DCS, Palmeiro MR, Moreira JS, Martins ACDC, da Silva AF, de Fátima Madeira M, Quintella LP, Confort EM, de Oliveira Schubach A, da Conceição Silva F, Valete-Rosalino CM. Oral manifestations in the American tegumentary leishmaniasis. PLoS One 2014; 9:e109790. [PMID: 25386857 PMCID: PMC4227643 DOI: 10.1371/journal.pone.0109790] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Accepted: 09/10/2014] [Indexed: 11/27/2022] Open
Abstract
Introduction American tegumentary leishmaniasis (ATL) can affect the skin or mucosa (mucocutaneous leishmaniasis – MCL) including the oral cavity. MCL oral lesions are often confused with other oral diseases, delaying diagnosis and specific treatment, and increasing the likelihood of sequelae. Thus, increasing the knowledge of the evolution of ATL oral lesions can facilitate its early diagnosis improving the prognosis of healing. Objectives Evaluate the frequency of ATL oral lesion and describe its clinical, laboratory and therapeutic peculiarities. Methods A descriptive transversal study was carried out, using data from medical records of 206 patients with MCL examined at the outpatient clinics-IPEC-Fiocruz between 1989 and 2013. Proportions were calculated for the categorical variables and the association among them was assessed by the Pearson's chi-square test. Measures of central tendency and dispersion were used for the continuous variables and their differences were assessed by both parametric (t test) and non parametric (Mann-Whitney) tests. P-values <0.05 were considered as significant. Results The most affected site was the nose, followed by the mouth, pharynx and larynx. Seventy eight (37.9%) have oral lesions and the disease presented a lower median of the evolution time than in other mucous sites as well as an increased time to heal. The presence of oral lesion was associated with: the presence of lesions in the other three mucosal sites; a smaller median of the leishmanin skin test values; a longer healing time of the mucosal lesions; a higher recurrence frequency; and a smaller frequency of treatment finishing and healing. When the oral lesion was isolated, it was associated with an age 20 years lower than when the oral lesion was associated with other mucosal sites. Conclusion Considering the worst therapy results associated with the presence of oral lesions, we suggest that lesions in this location represent a factor of worse prognosis for MCL.
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Affiliation(s)
- Daniel Cesar Silva da Costa
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
| | - Mariana Reuter Palmeiro
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
| | - João Soares Moreira
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
| | | | - Aline Fagundes da Silva
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
| | - Maria de Fátima Madeira
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
| | - Leonardo Pereira Quintella
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
| | - Eliame Mouta Confort
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
| | | | - Fátima da Conceição Silva
- Laboratory of Immunoparasitology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
- * E-mail: (CMVR); (FCS)
| | - Cláudia Maria Valete-Rosalino
- Evandro Chagas National Institute of Infectious Diseases, Oswaldo Cruz Foundation, Rio de Janeiro-RJ, Brazil
- Department of Otorhinolaryngology and Ophthalmology, Federal University of Rio de Janeiro, Rio de Janeiro-RJ, Brazil
- * E-mail: (CMVR); (FCS)
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Ran X, Zhao X, Tong H. [Analysis of six cases concerning clinical features of rhinolith]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2014; 28:1804-1805. [PMID: 25752124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To analyze six cases concerning clinical features, the treatment process and curative effect of Rhinolith. The six patients had unilateral nasal obstruction, three of them were accompanied with purulent nasal discharge, two had blood with them, one patient had repeated hemorrhage of nasal cavity and two patients had developed headache. By using endoscopic, four irregular stones which are yellow, gray and brown were found in the middle and back end. Because of the severe nasal septum deviation and inferior turbinate polypoid, the stone could not be seen clearly but could be touched by aspirator. In sinus CT examination of 6 cases, it showed incomplete irregular shapes and had high density unilateral nasal cavity in the posterior segment. 4 patients had nasal deviation, 3 patients had ipsilateral sinusitis. 4 patients removed their stone by using endoscopy, 2 patients took the stone away after correction of nasal septum. Pathologic diagnosis: rhinolith. Two patients also had exogenous foreign matters which were considered as pseudo nasal stones.
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Sagiroglu SG, Guler SA. Giant nasolabial cyst. J PAK MED ASSOC 2014; 64:1320-1321. [PMID: 25831657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Nasolabial (nasoalveolar) cysts are nonodontogenic soft tissue lesions derived from epithelial remanant of the nasolacrimal duct. These are generally slow-growing painless lesions. Additionally, they can cause obstruction, facial deformity and pain. This case report evaluates the facial deformity and boat-shaped resorption demonstrated on computerized tomography (CT) in a 28 years-old patient presenting with facial swelling and pain as a result of a nasolabial cyst. Nasolabial cysts must be kept in mind in patients suffering from facial deformity and infection as an underlying predisposing factor. Recurrences may be seen in cases not amenable to treatment by surgical excision.
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Affiliation(s)
- Dominique C Pichard
- Department of Dermatology, Georgetown University Hospital/Washington Hospital Center, Washington, DC
| | - Edward W Cowen
- Dermatology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD
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Bird GH, Boyapalle S, Wong T, Opoku-Nsiah K, Bedi R, Crannell WC, Perry AF, Nguyen H, Sampayo V, Devareddy A, Mohapatra S, Mohapatra SS, Walensky LD. Mucosal delivery of a double-stapled RSV peptide prevents nasopulmonary infection. J Clin Invest 2014; 124:2113-24. [PMID: 24743147 DOI: 10.1172/jci71856] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 01/23/2014] [Indexed: 12/22/2022] Open
Abstract
Respiratory syncytial virus (RSV) infection accounts for approximately 64 million cases of respiratory disease and 200,000 deaths worldwide each year, yet no broadly effective prophylactic or treatment regimen is available. RSV deploys paired, self-associating, heptad repeat domains of its fusion protein, RSV-F, to form a fusogenic 6-helix bundle that enables the virus to penetrate the host cell membrane. Here, we developed hydrocarbon double-stapled RSV fusion peptides that exhibit stabilized α-helical structure and striking proteolytic resistance. Pretreatment with double-stapled RSV peptides that specifically bound to the RSV fusion bundle inhibited infection by both laboratory and clinical RSV isolates in cells and murine infection models. Intranasal delivery of a lead double-stapled RSV peptide effectively prevented viral infection of the nares. A chitosan-based nanoparticle preparation markedly enhanced pulmonary delivery, further preventing progression of RSV infection to the lung. Thus, our results provide a strategy for inhibiting RSV infection by mucosal and endotracheal delivery of double-stapled RSV fusion peptides.
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Abstract
This end of year issue is the usual blend of basic science and medical or surgical treatments, but with a strong anatomical flavour. It would seem there is little new to say about topographical anatomy and yet from a surgical perspective there is still much to be learnt, as evidenced by the in-depth investigation by Liu et al. (1) of the Vidian canal. Although vidian neurectomy is clearly still fashionable in Taiwan, the canal itself has assumed greater importance with the demonstration that this is the principle route for sphenoid invasion by juvenile angiofibroma (JAF) and thus the site of ‘recurrence’ if not adequately explored (2). Drilling out the canal and the surrounding basi-sphenoid is now recognised as a key determinant in the complete removal of JAF whatever surgical approach is employed. 3-D imaging reconstruction elegantly demonstrates the range of anatomical variation related principally to increased sphenoid pneumatisation and consequent prominence of adjacent structures such as the vidian canal itself and the foramen rotundum (3,4). A better appreciation of this anatomy might even lead to a resurgence of international interest in vidian neurectomy for the treatment of excessive watery rhinorrhoea if the associated complications from the procedure could be minimised (5,6).
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Kim SJ, Byun SW, Lee SS. Various tumors in the nasal vestibule. Int J Clin Exp Pathol 2013; 6:2713-2718. [PMID: 24294358 PMCID: PMC3843252] [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] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Accepted: 10/21/2013] [Indexed: 06/02/2023]
Abstract
Various types of diseases can involve the nasal vestibule. Diagnosis and treatment of a nasal vestibular mass is often challenging due to the anatomical features of the nasal vestibule. Here, we present four cases with nasal vestibular masses. Two cases were diagnosed as squamous papillomas. The others were a trichofolliculoma and pseudoepitheliomatous hyperplasia with hyperkeratosis. Our aim was to discuss the characteristics of each disease and the considerations thought to be necessary for diagnosis and treatment of nasal vestibular tumors from these cases and the related literature.
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Affiliation(s)
- So Jeong Kim
- Department of Otolaryngology-Head and Neck Surgery, Ewha Womans University School of Medicine Seoul, Korea
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Chiu SC. An unusual case of angiolymphoid hyperplasia with eosinophilia of the nose. Ear Nose Throat J 2013; 92:E10-E11. [PMID: 24057907] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
Angiolymphoid hyperplasia with eosinophilia (ALHE) is a rare benign vascular lesion that most commonly involves the ear and preauricular area. We report the case of a 38-year-old man who presented with a progressively enlarging mass of the left nasal vestibule. The lesion was diagnosed as a nasal ALHE and treated with surgical excision. There were no complications.
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Affiliation(s)
- Sheng-Chang Chiu
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, 135 Nanhsiau St., Changhua 500, Taiwan.
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National Toxicology Program. Toxicology and carcinogenesis studies of N,N-dimethyl-p-toluidine (CAS No. 99-97-8) in F344/N rats and B6C3F1/N mice (gavage studies). Natl Toxicol Program Tech Rep Ser 2012;:1-211. [PMID: 23027199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
N,N-dimethyl-p-toluidine was nominated for toxicology and carcinogenesis studies by the National Cancer Institute based on the potential for human exposure through its use in dental materials and bone cements and the lack of toxicity and carcinogenicity data. Male and female F344/N rats and B6C3F1/N mice were administered N,N-dimethyl-p-toluidine (greater than 99% pure) in corn oil by gavage for 3 months or 2 years. Genetic toxicology studies were conducted in Salmonella typhimurium and Escherichia coli, mouse peripheral blood, and mouse and rat liver. 3-MONTH STUDY IN RATS: Groups of 10 male and 10 female rats were administered 0, 62.5, 125, 250, 500, or 1,000 mg N,N-dimethyl-p-toluidine/kg body weight in corn oil by gavage, 5 days per week for 14 weeks. Additional groups of 10 male and 10 female rats (clinical pathology study) were administered the same doses, 5 days per week for 25 days. On day 88, blood was collected from core study rats for hemoglobin and methemoglobin analyses only. All 1,000 mg/kg male and female rats and one 500 mg/kg male rat died by study day 3. Mean body weights of all surviving dosed groups of males and females were significantly less than those of the vehicle controls. Clinical findings associated with exposure to N,N-dimethyl-p-toluidine included cyanosis, abnormal breathing, and lethargy in groups administered 250 mg/kg or greater. Methemoglobinemia appeared to be the primary hematologic toxic response, and many other lesions could be explained as secondary to methemoglobin formation including Heinz body formation; a macrocytic, hypochromic, responsive anemia; and increased hematopoietic cell proliferation in the spleen and bone marrow. In general, hematologic changes were dose-related and occurred at both evaluated timepoints in all dosed groups. Anemia was evidenced by decreases in hematocrit values, hemoglobin concentrations, and erythrocyte counts; erythrocyte macrocytosis was characterized by increases in mean cell volume and mean cell hemoglobin values; erythrocyte hypochromia was evidenced by decreases in mean cell hemoglobin concentration values; and an erythropoietic response to the anemia was characterized by substantially increased reticulocyte and nucleated erythrocyte counts. Liver weights of all surviving dosed groups of males and females were significantly greater than those of the vehicle controls. Kidney weights of all surviving dosed groups of females were significantly greater than those of the vehicle controls. There were significant decreases in left cauda epididymis and left epididymis weights in 250 mg/kg males. There was a dose-related decrease in the number of cycling females, with only four females in the 250 mg/kg group having regular cycles and females in the 125 and 250 mg/kg groups spending a significantly higher proportion of time in extended diestrus compared to the vehicle control group. In the surviving groups of rats, there were significantly increased incidences of pigmentation in the liver of all dosed groups, hepatocyte hypertrophy in groups administered 125 mg/kg or greater, and hepatocyte necrosis in 62.5, 250, and 500 mg/kg females. In the olfactory epithelium of the nose, there were dose-related increases in the incidences and severities of degeneration in all dosed groups and significantly increased incidences of metaplasia in the 250 and 500 mg/kg groups. In the respiratory epithelium of the nose, there were significantly increased incidences of hyperplasia and squamous metaplasia in all of the groups administered 125 mg/kg or greater. The incidences of glandular hyperplasia of the nose were significantly increased in males and females administered 125, 250, or 500 mg/kg. In the spleen, there were significantly increased incidences of capsule fibrosis, congestion, mesothelial hypertrophy, and lymphoid follicle atrophy primarily in groups administered 125 mg/kg or greater. Hematopoietic cell proliferation and pigmentation were increased in severity in treated groups. In the kidney, there were significantly increased incidences of nephropathy (females), pigmentation (males and females), papillary necrosis (males and females), and mineralization (males). Other treatment-related lesions included inflammation of the forestomach in males, mesenteric lymph node atrophy in females, and bone marrow hyperplasia in males and females. 3-MONTH STUDY IN MICE: Groups of 10 male and 10 female mice were administered 0, 15, 30, 60, 125, or 250 mg N,N-dimethyl-p-toluidine/kg body weight in corn oil by gavage, 5 days per week for 14 weeks. All 250 mg/kg male and female mice (except for one male mouse) died before day 10, and three males and two females administered 125 mg/kg died before the end of the study. The final mean body weight of 125 mg/kg males and the mean body weight gains of 125 mg/kg males and females were significantly less than those of the vehicle controls. Clinical findings associated with administration of N,N-dimethyl-p-toluidine included abnormal breathing, thinness, lethargy, cyanosis, and ruffled fur in 125 and 250 mg/kg males and females. Methemoglobinemia appeared to be the primary hematologic toxic response; however there were less severe erythron changes compared to the 3-month study in rats. In females, no erythron changes were detected up to 125 mg/kg. In males, inconsistent and minor decreases in hematocrit values, hemoglobin concentrations, and erythrocyte counts, and increased reticulocyte counts occurred in groups administered 60 mg/kg or greater. Methemoglobin values were minimally increased in males and females administered 30 mg/kg or greater. Heinz bodies were slightly increased in 60 mg/kg females, 125 mg/kg males and females, and the one surviving 250 mg/kg male; Heinz body formation was considered secondary to methemoglobin formation. Liver weights of all dosed groups of mice were significantly greater than those of the vehicle controls. In the surviving groups of mice, there were significantly increased incidences of bronchiolar epithelium degeneration, bronchiolar epithelium regeneration, and peribronchiolar chronic active inflammation in the lung of 125 mg/kg groups, and histiocytic infiltrates of the alveoli in 125 mg/kg females. In the nose, there were significantly increased incidences of glandular hyperplasia and olfactory epithelium metaplasia in the 125 mg/kg groups and olfactory epithelium degeneration in 60 mg/kg females and 125 mg/kg males and females. In the thymus, the incidences of thymocyte necrosis in the 125 mg/kg groups were significantly increased. In the liver, the severities of cytoplasmic vacuolization of the hepatocytes were increased in dosed groups of males and females. 2-YEAR STUDY IN RATS: Groups of 50 male and 50 female rats were administered 0, 6, 20, or 60 mg N,N-dimethyl-p-toluidine/kg body weight in corn oil by gavage, 5 days per week for 104 or 105 weeks. Additional groups of 10 male and 10 female rats (clinical pathology study) were administered the same doses for 86 days. Survival of 60 mg/kg males was significantly less than that of the vehicle controls. Mean body weights of 60 mg/kg males and females were more than 10% less than those of the vehicle controls after week 61 and week 33, respectively. Clinical findings included signs of pallor in 60 mg/kg females and hyperactivity and boxing behavior in 20 mg/kg females and 60 mg/kg males and females. The hematology findings at the 3-month timepoint were consistent with those in the 3-month study in rats which indicated that methemoglobinemia was the primary hematologic toxic response. In the 20 and 60 mg/kg groups, there were dose-related decreases in hematocrit values, hemoglobin concentrations, and erythrocyte counts. There were similar trends toward erythrocyte macrocytosis and hypochromia and increased erythropoiesis as seen in the 3-month study. While the magnitudes of the erythron decreases were not sufficient to classify the responses as anemias, the patterns of the erythron changes were identical to those in the 3-month study. In the liver of 60 mg/kg males and females, there were significantly increased incidences of hepatocellular carcinoma and hepatocellular adenoma or hepatocellular carcinoma (combined). Numerous nonneoplastic liver lesions occurred in dosed males and females primarily in the 20 and 60 mg/kg groups. In the nose, there were significantly increased incidences of transitional epithelium adenoma and transitional epithelium adenoma or carcinoma (combined) in 60 mg/kg males; transitional epithelium adenoma also occurred in female rats administered 6 or 60 mg/kg. In the nose, there were significantly increased incidences of nonneoplastic lesions in the olfactory, respiratory, and transitional epithelia of dosed rats. These lesions occurred with the greatest incidence and severity in the 60 mg/kg groups. The incidences of inflammation and nerve atrophy were significantly increased in males and females administered 60 mg/kg. There were increased incidences of follicular cell adenoma or carcinoma (combined) of the thyroid gland in all dosed groups of males, and an increased incidence of follicular cell adenoma in 20 mg/kg females. In the spleen, there were significantly increased incidences of hematopoietic cell proliferation in all dosed groups of males and females. The incidences of congestion and mesothelial hypertrophy of the capsule were significantly increased in 60 mg/kg males and all dosed groups of females. There were also significantly increased incidences of capsular fibrosis and atrophy of the lymphoid follicle in the 60 mg/kg groups. The incidences of pigmentation were significantly increased in all dosed groups of males and in 60 mg/kg females. In all dosed groups of female rats, there were significantly increased incidences of nephropathy. (ABSTRACT TRUNCATED)
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Cho SH, Oh SY, Zhu Z, Lee J, Lane AP. Spontaneous eosinophilic nasal inflammation in a genetically-mutant mouse: comparative study with an allergic inflammation model. PLoS One 2012; 7:e35114. [PMID: 22509389 PMCID: PMC3324406 DOI: 10.1371/journal.pone.0035114] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2012] [Accepted: 03/13/2012] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Eosinophilic inflammation is a hallmark of chronic rhinosinusitis with nasal polyps. To model this disease process experimentally, nasal sensitization of mice with ovalbumin or aspergillus has been described. Here, we describe a genetically mutant mouse that develops robust spontaneous nasal eosinophilic inflammation. These mice lack the enzyme SHP-1 that down-regulates the IL-4Rα/stat6 signaling pathway. We compared nasal inflammation and inflammatory mediators in SHP-1 deficient mice (mev) and an ovalbumin-induced nasal allergy model. METHODS A novel technique of trans-pharyngeal nasal lavage was developed to obtain samples of inflammatory cells from the nasal passages of allergic and mev mice. Total and differential cell counts were performed on cytospin preparations. Expression of tissue mRNA for IL-4, IL-13, and mouse beta-defensin-1 (MBD-1) was determined by quantitative PCR. Eotaxin in the lavage fluid was assessed by ELISA. RESULTS Allergic and mev mice had increased total cells and eosinophils compared with controls. Expression of IL-4 was similarly increased in both allergic and mev mice, but expression of IL-13 and eotaxin was significantly greater in the allergic mice than mev mice. Eotaxin was significantly up-regulated in both allergic rhinitis and mev mice. In both models of eosinophilic inflammation, down-regulation of the innate immune marker MBD-1 was observed. CONCLUSIONS The mev mice display spontaneous chronic nasal eosinophilic inflammation with potential utility for chronic rhinosinusitis with nasal polyps research. The eosinophilic infiltrate is more robust in the mev mice than allergic mice, but Th2 cytokine expression is not as pronounced. Decreased MBD-1 expression in both models supports the concept that Th2-cytokines down-regulate sinonasal innate immunity in humans, and suggests a role for mouse models in investigating the interaction between adaptive and innate immunity in the sinonasal mucosa.
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Affiliation(s)
- Seok Hyun Cho
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Otorhinolaryngology-Head and Neck Surgery, College of Medicine, Hanyang University, Seoul, Korea
| | - Sun Young Oh
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Zhou Zhu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Joan Lee
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Andrew P. Lane
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- * E-mail:
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López V, Alonso V, Jordá E. Pseudoacne of the nasal crease in a 10-year-old boy. Int J Dermatol 2012; 50:1585-6. [PMID: 22098013 DOI: 10.1111/j.1365-4632.2010.04564.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Babamahmoudi F, Rafinejhad J, Enayati A. Nasal myiasis due to Lucilia sericata (Meigen, 1826) from Iran: a case report. Trop Biomed 2012; 29:175-179. [PMID: 22543618] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Although not very common, human myiasis occurs more in developing tropical countries. A variety of dipterans cause nasal myiasis including the family Caliphoridae. In this report a case of nasal myiasis due to Lucilia sericata is reported for the first time, in a 74-year old patient from Mazandaran Heart Centre, North of Iran. The patient was originally admitted to the Mazandaran Heart Centre due to cardiac arrest and cerebral ischemia with diminishing consciousness. Because of the emergence of large number of maggots from his left nostril and the suspicion of infectious diseases, he was referred to the ICU of the Razi Infectious Diseases Hospital the next day. The larvae were identified as L. sericata. The conditions of the patient were medicated and the myiasis was treated by washing with 2% solution of xylocaine and oral administration of 2 mg tablets of ivermectin.
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Affiliation(s)
- F Babamahmoudi
- Department of Infectious Diseases and Infectious Diseases Research Center, Razi University Hospital, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
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