Role of p40 and cytokeratin 5/6 in the differential diagnosis of sinonasal undifferentiated carcinoma.
Ann Diagn Pathol
; 18(5): 261-5, 2014 Oct.
Article
en En
| MEDLINE
| ID: mdl-25017972
ABSTRACT
Sinonasal undifferentiated carcinoma (SNUC) is an epithelial neoplasm of sinonasal region which does not exhibit a squamous or glandular differentiation. The challenge in diagnosis of this entity is the rarity of the disease, the varying morphology of the tumor which leads to gamut of differential diagnosis and the paucity of consistent immunohistochemical markers except pancytokeratin. Forty-one cases of sinonasal epithelial neoplasm consisting of 11 cases of SNUC and 10 cases each of high-grade (grade 3 and 4) esthesioneuroblastoma, undifferentiated nasopharyngeal carcinoma, and poorly differentiated squamous cell carcinoma of the sinonasal region were analyzed for morphology and immunoexpression of CK5/6 and p40. It was found that SNUC did not exhibit immunohistochemical expression of p40 and CK 5/6, suggesting that these could be useful negative immune markers for diagnosis of SNUC.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Neoplasias del Seno Maxilar
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Carcinoma
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Biomarcadores de Tumor
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Queratina-5
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Queratina-6
Tipo de estudio:
Diagnostic_studies
Límite:
Adolescent
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Adult
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Aged
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Ann Diagn Pathol
Asunto de la revista:
PATOLOGIA
Año:
2014
Tipo del documento:
Article