Diaczok B J, Rival J
South Med J. 1987 Jul;80(7):931-2. doi: 10.1097/00007611-198707000-00034.
We have reported a case of diarrhea caused by Blastocystis hominis, an intestinal protozoan parasite of man. The organism is present in small numbers in up to one fifth of stool samples in hospitalized patients, but is associated with diarrhea in only heavily infested patients. Typical symptoms include diarrhea, crampy abdominal pain, nausea, vomiting, low-grade fever, gas, malaise, and chills. Fecal leukocytes are occasionally seen. The pathophysiologic mechanism of the diarrhea is not clear. Not all patients having large parasite burdens are symptomatic. Metronidazole, 1 to 2 gm/day orally in divided doses, is the treatment of choice.
我们报告了一例由人芽囊原虫引起的腹泻病例，人芽囊原虫是人类的一种肠道原生动物寄生虫。在住院患者中，高达五分之一的粪便样本中可少量发现该病原体，但仅在感染严重的患者中才与腹泻相关。典型症状包括腹泻、痉挛性腹痛、恶心、呕吐、低热、腹胀、不适和寒战。偶尔可见粪便白细胞。腹泻的病理生理机制尚不清楚。并非所有寄生虫负荷量大的患者都有症状。治疗首选甲硝唑，口服，每日1至2克，分剂量服用。
