Uncommon malignancies of the esophagus.
D000230:Adenocarcinoma / Q000473:pathology; D002296:Carcinosarcoma / Q000473:pathology; D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008297:Male; D008545:Melanoma / Q000473:pathology; D008875:Middle Aged