a 53-year-old man with intermittent colicky abdominal pain due to fasciola incarceration in common bile duct: a case

Fascioliasis is a zoonotic disease caused by liver flukes of the genus fasciola, as f. hepatica, and f. gigantica, mainly affecting the liver and biliary system during the chronic phase. these trematodes migrate through biliary ducts results in mild inflammation, when it is difficult to distinguish from obstructive lesions. here we describe a 53-yr-old man from golpayegan, a city in isfahan province, iran, in year 2015, with occasional fever and chills, and also frequent colicky abdominal pain mainly on the right upper quadrant, with tenderness at that part. there was no jaundice and elevated bilirubin, but increased alkaline phosphatase was detected. dilated common bile duct on abdominal sonography, without any visible lesion at its end and also dilated intraand extrahepatic biliary ducts on abdominal ct-scan were seen. endoscopic retrograde cholangiopancreatography (ercp) detected incarceration of parasites behind oddi's sphincter and also in common bile duct and serologic test (elisa) confirmed fascioliasis. however, iran is one of the most affected countries by fasciola, being aware of rare symptoms and presentations of this disease can aid the physicians to make timely and accurate diagnosis and therefore reduce the consequent morbidities.