Primary malignant melanoma of the esophagus: a case report.
D001344:Autopsy; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008297:Male; D008545:Melanoma / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D011859:Radiography