A pseudoacinar arrangement in a malignant melanoma: an unusual histopathologic pattern.
D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008545:Melanoma / Q000175:diagnosis / Q000473:pathology*; D012878:Skin Neoplasms / Q000175:diagnosis / Q000473:pathology*