title: Spontaneous regression of the primary lesion of a metastatic maligvant melanoma.
abstract: An atypical elderly patient with spontaneous regression of a primary lesion of malignant melanoma is presented. The 12 previously reported cases are also reviewed. The histological diagnosis of spontaneous regression of a melanoma can still be made after the regression appears to be grossly complete. All localized areas of depigmentation, or of scarring, should be biopsied when searching for an "occult" primary.
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008545:Melanoma / Q000473:pathology; D009362:Neoplasm Metastasis; D009365:Neoplasm Regression, Spontaneous