Meine G C, Dietz J, Rocha M, Mattos T, de Souza A R, Conteletti F R
Endoscopy Department, N. Sra. Conceição Hospital, Porto Alegre, RS, Brazil.
Dig Liver Dis. 2004 Nov;36(11):760-2. doi: 10.1016/j.dld.2004.01.027.
Strongyloides stercoralis is an intestinal helminth of systemic distribution, which, once in its host, has the ability to perpetuate itself through an autoinfection cycle, leading to chronic infection. In healthy hosts, the parasite usually does not cause any symptoms, or only mild symptoms that are limited mainly to the small intestine. However, in immunocompromised hosts, uncontrolled multiplication with massive infection may occur, causing hyperinfection syndrome or disseminated strongyloidiasis, which are both associated with high morbidity and mortality. There are few reports of gastric involvement, particularly presenting as ulcer in the stomach. We report a case of gastric ulcer caused by S. stercoralis in HIV-infected patient.
粪类圆线虫是一种具有全身分布的肠道蠕虫，一旦进入宿主，它就有能力通过自身感染循环进行自我繁殖，从而导致慢性感染。在健康宿主中，该寄生虫通常不会引起任何症状，或者只会引起主要局限于小肠的轻微症状。然而，在免疫功能低下的宿主中，可能会发生不受控制的大量繁殖并导致严重感染，从而引起高度感染综合征或播散性类圆线虫病，这两种情况都与高发病率和高死亡率相关。关于胃部受累的报道很少，尤其是表现为胃溃疡的情况。我们报告一例在HIV感染患者中由粪类圆线虫引起的胃溃疡病例。
