[Malignant melanoma of the rectum].
D006801:Humans; D008113:Liver Neoplasms / Q000175:diagnosis / Q000556:secondary; D008175:Lung Neoplasms / Q000175:diagnosis / Q000556:secondary; D008207:Lymphatic Metastasis; D008297:Male; D008545:Melanoma / Q000175:diagnosis*; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000175:diagnosis*
Czerniak złośliwy odbytnicy.