title: Adenocarcinoma and other unusual variants of esophageal cancer.
mesh_terms: D000230:Adenocarcinoma / Q000453:epidemiology* / Q000473:pathology / Q000628:therapy; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D018288:Carcinoma, Small Cell / Q000453:epidemiology; D002296:Carcinosarcoma / Q000453:epidemiology; D002648:Child; D004938:Esophageal Neoplasms / Q000453:epidemiology* / Q000473:pathology / Q000628:therapy; D005260:Female; D005350:Fibroma / Q000453:epidemiology; D006801:Humans; D008297:Male; D008545:Melanoma / Q000453:epidemiology; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012737:Sex Factors