human immunodeficiency virus陽性のアメーバ性大腸炎の1例

抄録

A 52-year-old Japanese man visited our hospital because of loose stool with blood and mucus. He had the past history of syphilis 10 years ago.
Colonoscopic study showed multiple discrete ulcers in the right hemicolon and erosions in the rectum. The biopsy specimen showed no Entamoeba histolytica, however I diagnosed the patient as an amebic colitis. I administered metronidazole orally, 500mg/day for 14days. The therapeutic results were good. Entamoeba histolytica was detected in the biopsy specimen from the erosions in the cecum at the follow-up study by colonoscopy eight months after the first study. I re-treated the patient as an amebic colitis. The patient confessed one month later that he was homosexual and was infected by human immunodeficiency virus (HIV) .
In this report, I stress an amebic colitis associated with HIV in homosexual is still rare in Japan.