This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pancreas, Subject name: Surgery
Most common primary leading to secondaries in pancreas: 
Select and explain. 
A. Lung, B. Breast, C. Colon, D. Stomach
A: Lung
Answer: A: Lung 
Explanation: Ans. (a) LungRef: Blumgart 5/e p 930-933* Secondary deposits in Pancreas is mc from Renal cell cancer (But on Postmortem studies- Lung cancer has been the topmost to produce secondary to pancreas)