Abstract
Two cases of infection with Strongyloides stercoralis were experienced. There are many reports of the several lesions produced by infection with Strongyloides stercoralis. Although infection with the parasite is usually mild, sometimes it can be severe or fatal. For the patients who complaint of diarrhea, abdominal discomfort, general fatigue, weight loss and others, the following should be noticed; the inspection of the feces and the changes of the gastrointestinaltract by roentgenological examination. When abnormality of the duodenum are seen in these cases, one should try the fiber-scopic examination and biopsy edematous and reddness mucosa with dirty mucus. In our cases, the clinical courses and histological changes of duodenal mucosa before and after the therapy had been followed by endoscopy. Especially Strongyloides stercoralis and its egg were identified in the biopsied specimen in one of the cases. For the diagnosis of Strongyloides stercoralis infection, it will be necessary, not only to pay attension to the duodenal changes in the cases mentioned above, but also to repeat biopsy through duodenofiberscope.
