広範な潰瘍性病変を呈したアメーバ性大腸炎の一例

抄録

Amoebic colitis is well known as the disease with the characteristical endoscopic image of multiple erosions or raised ulcer with dirty belag, which frequently appears on cecum or rectum. Herein, we experienced the patient of unusual type of severe amoebic pan-colitis.

A patient was 63-year-old male with chief complaints of intermittent diarrhea lasting for 2 years. The result of colonoscopy showed widely spreading ulcerative lesion on entire part of large intestine, and Entamoeba histolytica was detected by both fecal samples and biopsy samples. He recovered by anti-amoebic drugs, but partial colon stenosis was remained. Amoebic colitis could become critical if diagnosis was delayed. But sometimes typical endoscopic images are undetectable if severe inflammation circumferentially spreads around entire part of large intestine. We should consider amoebic colitis as a possible differential diagnosis when experienced uncertain cause of chronic pancolitis.