Abstract
A 38-year-old man was admitted to our hospital complaining of 5 episodes of melena without abdominal pain or diarrhea. No abnormalities were noted through an upper gastrointestinal endoscopy, but a proctoscopy revealed a large amount of coagulated blood within the rectum immediately before his admission. A colonoscopy revealed spotty redness with dark-red coagulation in the region from the splenic flexure down to the rectum except oral colon beyond the transverse colon. A presumptive diagnosis of campylobacter enterocolitis was made by a microscopy performed on the stool specimen, then an oral administration of erythromycin was started. A colonoscopy done on the 5th hospital day proved improvement on the mucosal changes. The final diagnosis of campylobacter enterocolitis was made by the stool culture. The patient took a satisfactory course of hospitalization and was discharged on the 10th day. Bacteriological examination of stool specimen together with endoscopy has been confirmed to be useful for the diagnosis of melena cases without manifestation of infectious enterocolitis.
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