Preferred treatment for type III Mirizzi's syndrome is:

Mirizzi's syndrome / functional hepatic syndrome: external compression of common hepatic duct by inflammatory tissue in the pericholecystic region; formation of cholecystocholedochal fistula. Types Treatment Type I Paial cholecystectomy Type II & III Paial cholecystectomy (choledochoplasty) + T- tube drainage Type IV & V Bilioenteric anastomosis.