Roy, KakaliDas, JoydeepMukherjee, DevdeepKundu, Ritabrata2026-02-092026-02-092017https://hdl.handle.net/20.500.14572/4597Kakali Roy All India Institute of Medical Sciences, AIIMS, Delhi Joydeep Das Institute of Child Health, Kolkata Devdeep Mukherjee St Mary’s Hospital, Manchester Ritabrata Kundu Institute of Child Health, KolkataAbstract: Ascaris infestation that too causing biliary obstruction is very rare in infancy even in endemic area. Adult Ascaris diameter (3-6 mm) is more than the average diameter of CBD in paediatric population, which is 1.27 +/- 0.67 mm. We are reporting a baby of seven months who presented with conjugated hypebilirubinemia and pancreatitis due to Round Worm in CBD.en-USBiliary ascariasisImagingConservative managementArticle