Duodenal strongyloidiasis and hyperinfection syndrome: Case report and literature review

Imman Fuad Khattab Hassan, Bruna Brandão de Farias, Vagner Vencato Kopereck, Heitor Alberto Jannke, José Francisco Pereira da Silva, Gustavo Gonzales Real

Abstract


Strongyloides stercoralis is an intestinal nematode that commonly causes chronic and asymptomatic infection, but in some situations, especially in cases of immunosuppression, infection by this parasite can manifest with extreme severity and high mortality. Hyperinfection syndrome and disseminated strongyloidiasis are two serious, life-threatening presentations associated with immunosuppression. We report the case of a 69 year-old male with diffuse abdominal pain, intermittent diarrhea, and fever. Stool analysis for parasitic infection was negative. Upper gastrointestinal endoscopy with duodenal biopsy revealed ulcerative duodenitis due to strongyloidiasis, showing the presence of several larvae in lymph and intraglandular ducts. Definitive diagnosis was established as S. stercoralis hyperinfection syndrome.


Keywords


Strongyloidiasis; Superinfection; Ivermectin; Albendazole; Thiabendazole

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ISSN: 2357-9730 

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