Malignant melanoma with an occult primary lesion.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008545:Melanoma / Q000150:complications / Q000473:pathology / Q000628:therapy*; D008854:Microscopy, Electron; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009365:Neoplasm Regression, Spontaneous; D010859:Pigmentation Disorders / Q000150:complications; D011379:Prognosis