ANSWER
From the question on page 421
Both T1- and T2-weighted images show an area of low signal adjacent to the gallbladder (arrowed), consistent with an extruded gallstone.1 2 A stone within the gall bladder is also identified on the T2-weighted image (fig 3 of the question). The patient underwent laparoscopic cholecystectomy where, after dissection of adhesions between the greater omentum and gallbladder, a stone …









