[Computed tomography of esophageal cancer--with special reference to the usefulness of PMG CT].
D000368:Aged; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D011012:Pneumomediastinum, Diagnostic; D014057:Tomography, X-Ray Computed / Q000379:methods*