Abstract
A 27-year-old man was admitted to our hospital complaining of large amounts of bloody stools without abdominal pain or diarrhea. Emergent colonoscopy revealed an ulcer with an exposed blood vessel on the ileocecal valve. Endoscopic hemostasis was attempted three times, but hemorrhage occurred again. A diagnosis of Campylobacter enterocolitis was made by bacterial culture test of the stool sample obtained on admission, and oral administration of levofloxacin was started. Despite administration of levofloxacin, he continued to have bloody stools. Then, we changed the antibiotic to azithromycin according to the drug susceptibility test on the 9th hospital day, and the bloody stools stopped in a few days. When physicians encounter an ulcer on the ileocecal valve without manifestations of infectious enterocolitis, bacterial culture tests of the stool and a detailed interview should be performed while keeping Campylobacter enterocolitis in mind.
