Primary melanoma of the esophagus.
D000368:Aged; D004848:Epithelium / Q000473:pathology; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D004947:Esophagus / Q000473:pathology*; D006801:Humans; D008297:Male; D008545:Melanoma / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography