Mirizzi syndrome: History, current knowledge and proposal of a simplified classification

Figure 2 Albert Behrend described this case that corresponded to Mirizzi syndrome type IV according to the Csendes classification. The gallstone surrounded by an inflammatory process was clearly dilating the cystic duct fusing the gallbladder to the bile duct (original drawing from Annals of Surgery 1950; 132, page 300)[20].