<prompt> Treatment of mucinous carcinoma of Gallbladder confined to the lamina propriaSimple cholecystectomyExtended cholecystectomyCholecystectomy with wedge resection of liverChemotherapy only  <response>: Ans. a Simple CholecystectomyRef: Sabiston 20th edition Page 1512-1514 T1 a is confined to lamina propria- Just simple cholecystectomy is enough. 