en Internal Medicine & Gastroenterology Internal Medicine & Gastroenterology case report case report <p> <strong> Abstract</strong> </p><p>  Strongyloidiasis is caused by infestation with Strongyloides stercoralis, a free </p><p>  living tropical and semitropical soil helminth that has a larval form that penetrates </p><p>  intact skin. Clinical manifestations may be varied from an asymptomatic infection </p><p>  in immunocompetent hosts to a diffuse and fatal form in immunocompromised </p><p>  hosts. </p><p>  We report a 56-year-old man from Dezful (south-west of Iran) with a 6-month </p><p>  history of nausea, vomiting and significant weight loss (greater than 10%). Abdominal </p><p>  ultrasonography had no significant findings. Upper gastrointestinal series and </p><p>  abdominal CT were performed. Dilated bowel loops especially in the jejunum, with </p><p>  decreased mucosal folds were seen. Abiopsy specimen from the third part of duodenum </p><p>  showed strongyloides larvae, thus albendazole 400 mg twice a day for 3 </p><p>  days was initiated. He responded well to this treatment regimen. </p><p>  </p> strongyloidiasis, nausea, vomiting, albendazole. 149 151 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-1-8&slc_lang=en&sid=1 Hossein Froutan 20031947532846001652 20031947532846001652 No Tehran University of Medical Sciences, Chairman of Gastroenterology Dept. Ayatollah Bayatian bayatian@yahoo.com. 20031947532846001653 20031947532846001653 Yes Internal Medicine Ward, Imam Khomeini Hospital, Tehran, Iran. Seied Mohsen Razavizadeh 20031947532846001654 20031947532846001654 No Imam Khomeini Hospital. Mohsen Nasiri-Toosi 20031947532846001655 20031947532846001655 No Tehran University of Medical Sciences, Tehran, Iran. Afshin Shafaghi 20031947532846001656 20031947532846001656 No Imam Khomeini Hospital.