title: Preoperative diagnosis of a nonspecific ulcer of the cecum by colonofiberscopy: report of a case.
mesh_terms: D002429:Cecal Diseases / Q000175:diagnosis* / Q000601:surgery; D004724:Endoscopy; D005336:Fiber Optic Technology; D006801:Humans; D008297:Male; D008551:Melena / Q000175:diagnosis; D008722:Methods; D008875:Middle Aged; D014456:Ulcer / Q000175:diagnosis* / Q000601:surgery