ISPUB.COM The Internet Journal of Parasitic Diseases Volume 1 Number 1 1 of 4 Gallbladder Ascariasis: A Case Report Puneet, S Tiwary, S Singh, S Agarwal, A Khanna Citation Puneet, S Tiwary, S Singh, S Agarwal, A Khanna. Gallbladder Ascariasis: A Case Report. The Internet Journal of Parasitic Diseases. 2005 Volume 1 Number 1. Abstract Ascariasis, the most common helminthic infection is caused by ascaris lumbricoides. Usually the adult worm lives in the small intestine. Rarely it migrates through the papilla of vater and may enter the common bile duct. We are reporting a case of gall bladder ascariasis. Presence of Ascaris lumbricoides in gallbladder is rare entity as it is difficult to reach there due to narrow and tortuous cystic duct. INTRODUCTION Ascariasis is the most frequent helminthic infection in humans ( 1 ). The causative organism is Ascaris lumbricoides which normally lives in the lumen of small intestine ( 1 , 2 ). From the intestine, the worm can invade the bile duct or pancreatic duct but invasion into the gallbladder is quite rare because of the anatomical features of the cystic duct which is narrow and tortuous ( 3 ). We report a case of gallbladder ascariasis due to its rare presentation. CASE REPORT A 30 years female presented with pain in the right upper abdomen and epigastric region with jaundice for 6 days. History of nausea and vomiting was also present. Prior history of passage of worms in the stool was present. On general examination jaundice was present. Abdominal examination revealed mild tenderness in the right hypochondrium. Liver function test shows raised serum bilirubin (4mg %) and alkaline phosphatase (400IU/L). USG abdomen revealed dilated gallbladder without any evidence of cholecystitis with tubular echogenic non-shadowing image in the gallbladder lumen and CBD. Diagnosis of gall bladder and CBD ascariasis was made. Patient was treated conservatively and albendazole (400mg) given once a week for three consecutive doses. Patient responded well to the treatment and liver function test and ultrasound abdomen performed after three week revealed no worm in the gall bladder without any evidence of cholecystitis. Figure 1 Figure 1: Ultrasound showing round worm in gallbladder