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Observation of the Free-living Adults of Strongyloides stercoralis from a Human Stool in Korea
Young-Hee Hong1, Jong-Wan Kim2, In-Soo Rheem2, Jae-Soo Kim1, Suk-Bae Kim3, Jong-Yil Chai4, Sang-Mee Guk5, Seung-Ha Lee6 and Min Seo7*
Department of Laboratory Medicine1, Dankook University Hospital, Cheonan, Departments of Laboratory Medicine2, Internal Medicine3, Medical Engineering6 and Parasitology7, Dankook University College of Medicine, Cheonan, Department of Parasitology and Tropical Medicine4, Seoul National University College of Medicine and Institute of Endemic Diseases, Seoul National University Medical Research Center, Seoul, Department of Parasitology5, Korea University College of Medicine, Seoul, Korea
Vol.41 Num.2 (p105~108)
A 76-year-old Korean man living in Cheonan, Chungcheongnam-do, visited one University Hospital with dyspnea and abdominal pain. He has been undergoing transcatheter arterial chemoembolization (TACE) for the past three years for the treatment of hepatocellular carcinoma. Abdominal pain developed 10 days ago, and became worse several days prior to coming to the emergency room. Physical examination revealed tenderness over the umbilicus. Eosinophil count was 22% without increase in the number of white blood cells. Stool examination showed adult and larval nematodes, which were subsequently identified as free-living adult worms and rhabditiform larvae of Strongyloides stercoralis. Follow-up stool examination performed six days later demonstrated only rhabditiform larvae of S. stercoralis. This is the first report on the recovery of free- living adult worms from human stool in the world.
Keywords : Strongyloides stercoralis, Free-living adult, Stool