Ultrasound from a patient with acute cholecystitis and Mirizzi syndrome

Transabdominal ultrasound from a patient with acute cholecystitis and Mirizzi syndrome. The patient presented with right upper quadrant pain and jaundice. Acute cholecystitis and Mirizzi syndrome are confirmed by the ultrasound findings of a positive sonographic Murphy's sign (pain with compression of the gallbladder by the ultrasound probe), a large shadowing stone impacted in the infundibulum of the gallbladder (arrow), cholestasis with sludge (small arrowhead), and a dilated common hepatic duct (large arrowheads in B).