<prompt> Mirizzis syndrome is?Gall bladder stone compressing common hepatic ductGall bladder carcinoma invading IVCGall bladder stone causing cholecystitisPancreatic carcinoma  <response>: ANSWER: A Gall bladder stone compressing common hepatic ductREF: Bailey and love 24th ed p. 1106Mirizzi syndrome is obstruction of biliary duct leading to jaundice due to stone impacted in Hartmanns pouch or cystic duct. 