title: Malignant melanoma of the anal canal. A case report and review.
abstract: Primary malignant melanoma of the anal canal is a fairly uncommon but highly malignant disease. At the time of diagnosis it is usually far advanced and therefore incurable. Confusion with benign conditions and ignorance regarding the disease entity result in delayed diagnosis in a high percentage of cases. Improvement in the survival rate depends on acute surgical awareness, early diagnosis and aggressive surgical intervention.
mesh_terms: D000368:Aged; D001005:Anus Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D008545:Melanoma / Q000473:pathology*