This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach & Duodenum, Subject name: Surgery
Total gastrectomy is the only way of treatment for: 
Select and explain. 
A. Proximal cancer, B. Distal cancer, C. Ulcerating cancer in the body, D. Polypoidal cancer in the antrum
A: Proximal cancer
Answer: A: Proximal cancer 
Explanation: Ans. (a) Proximal cancerRef: Sabiston 20th Edition, Page 1224* Margin clearance needed proximally n cancer stomach is6cm - hence needed Total gastrectomy.(NCCN recommends 4cm margin clearance)