Clinicopathological Analysis and Differential Diagnosis of 36 Cases of Primary Malignant Melanoma of Mucous Membranes

Objective To investigate the clinicopathological characteristics and differential diagnosis of primary malignant melanoma of mucous membranes. Methods The clinical pathological data of 36 patients were analyzed retrospectively and 15 cases were stained with HMB_ 45, S-100 and Vimentin by SP immunohistochemical method. All cases were observed under microscope. Results According to the morphological characters of tumor cells,36 cases of mucosal malignant melanoma were classified into epithelioid cell type inc...