This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gall Bladder & Bile Ducts, Subject name: Surgery
Treatment of mucinous carcinoma of Gallbladder confined to the lamina propria 
Select and explain. 
A. Simple cholecystectomy, B. Extended cholecystectomy, C. Cholecystectomy with wedge resection of liver, D. Chemotherapy only
A: Simple cholecystectomy
Answer: A: Simple cholecystectomy 
Explanation: Ans. (a) Simple CholecystectomyRef: Sabiston 20th edition Page 1512-1514* T1 a is confined to lamina propria- Just simple cholecystectomy is enough.