This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Migratory superficial thrombophlebitis is seen in - 
Select and explain. 
A. Carcinoma pancreas, B. Astrocytoma, C. Renal carcinoma, D. All
A: Carcinoma pancreas
Answer: A: Carcinoma pancreas 
Explanation: Ans. is 'a' i.e., Carcinoma pancreas