2019 Volume 61 Issue 4 Pages 381-386
The patient was a 63-year-old man. He was examined by a local doctor for dyspnea, where he was administered oral steroids and started on inhalation therapy for a diagnosis of bronchial asthma. However, his symptoms worsened and he was brought to our hospital. On admission, he was diagnosed with atrial fibrillation and acute heart failure. Upon administration of anticoagulants to prevent embolism in this patient with atrial fibrillation, the patient developed bloody stool. Colonoscopy revealed multiple diverticula in the hepatic flexure, along with ulcers and white coating localized to that area. Diverticular colitis was initially suspected, but vegetative amoebas were found in a tissue biopsy of the ulcers and he was diagnosed with amebic colitis. The ulcers healed with administration of metronidazole. We report this case in which amebic colitis developed in a man with asymptomatic Entamoeba histolytica infection from the use of steroids and anticoagulants, with the lesions localized in the area with multiple colon diverticula.