Primary gastric melanoma: a case report of a rare malignancy

Jornal Brasileiro de Patologia e Medicina Laboratorial

关键词: melanoma;    imuno-histoquímica;    neoplasias gástricas;   

DOI  :  10.5935/1676-2444.20200034

来源: DOAJ

【 摘 要 】

ABSTRACT Noncutaneous melanoma is a rare clinical entity, and their primary or secondary nature is often difficult to establish. Few cases of primary gastric melanoma have been described in the literature. We report a case of a 55-year-old male patient with dyspepsia complaints. Esophagogastroduodenoscopy revealed a polypoid mass with blackened areas at the greater curvature of the gastric body, which was histologically compatible with melanoma; positive immunohistochemistry for S100, melan-A, and vimentin. The extensive dermatological exam did not identify a primary lesion.

【 授权许可】

Unknown