Primary malignant melanoma of the esophagus: a case report.
D002467:Cell Nucleus; D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000473:pathology*; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis; D008297:Male; D008545:Melanoma / Q000473:pathology*; D008875:Middle Aged; D008938:Mitosis; D009362:Neoplasm Metastasis; D010996:Pleural Effusion / Q000175:diagnosis / Q000209:etiology