[Diagnosis of esophageal cancer].
D001706:Biopsy; D002299:Cardia; D003581:Cytodiagnosis; D004938:Esophageal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D004945:Esophagoscopy; D005471:Fluoroscopy; D006801:Humans; D013274:Stomach Neoplasms / Q000175:diagnosis