大腸内視鏡検査を契機に診断されたビルハルツ住血吸虫症の1例 BILHARZIASIS DIAGNOSED ON COLONOSCOPY
A 39-year-old male, who did not have hematuria or cystitis-like symptoms on colonoscopy was treated for pedunculated polyps of the sigmoid colon, multiple small whitish protuberances were seen between the ascending colon and rectum. On pathology the lesions were found to consist of a granulomatous inflammatory areas located in the lower layer of the mucosa with elongated ovoid parasitic ova present in the central necrotic foci of the granulomas. At one end of the ova, a characteristic acanthaceous projection was noted, which led to the diagnosis of bilharziasis. The patient had recently traveled to the Republic of Malawi (Africa), an area where bilharziasis is endemic. It was assumed that he was infected with the organism via contact with fresh water during his stay in that country. This patient's inactive bilharziasis was accidentally discovered on a colonoscopy. In addition to endoscopic imaging, ultrasonic endoscopic imaging and double contrast enema. Since the patient had no symptoms and no parasitic eggs were found in feces. The patient required no treatment.
- 日本消化器内視鏡学会雑誌 = Gastroenterological endoscopy
日本消化器内視鏡学会雑誌 = Gastroenterological endoscopy 50(7), 1609-1614, 2008-07-20