Pancreatic metastasis from lung adenocarcinoma

Abstract

TTF‐1 is a highly useful marker to assist in differentiating between pulmonary and nonpulmonary, nonthyroid adenocarcinomas. Our case shows that TTF‐1 is highly useful in differentiating between pancreatic metastasis from lung adenocarcinoma and primary pancreatic cancer, especially when the clinical course and imaging findings are not helpful for differentiating them.