Linear filling defect on ERCP is characteristic of -: (A) Bile duct stone, (B) Pancreatic duct stone, (C) Worm in biliary tree, (D) Stricture
Answer is C. Ans. is 'c' i.e., Worm in biliary tree Imaging in ascariasiso Plain abdominal X ray: calcified worm,o USG: moving echogenic structures or strips,o ERCP: linear filling defect.