title: Primary malignant melanoma of the gallbladder.
abstract: A primary malignant melanoma of the gallbladder in a 44-years-old man is presented. The typical pathologic findings in the now eight reported cases are analysed. The clinical course of the present case was determined by multiple metastases to the brain. The histogenesis of these rare tumors of the gallbladder is still obscure.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000473:pathology; D005706:Gallbladder Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D008545:Melanoma / Q000473:pathology*; D009362:Neoplasm Metastasis