The features of the Mirizzi syndrome on ultrasound examination

The Mirizzi syndrome consists of the following four elements: 1. an anatomic arrangement of the cystic duct such that it lies almost parallel to the common hepatic duct; 2. impaction of a gall-stone in the cystic duct or neck of the gall-bladder; 3. partial mechanical obstruction of the common hepatic duct by the stone itself or the resulting inflammatory reaction; and 4. recurrent cholangitis or ultimately cholangitic cirrhosis due to the partial obstruction (Clemett and Lowman, 1965). This is an uncommon syndrome. We report the features on ultrasound examination in a patient we have recently seen.