Post written by Yusaku Shimamoto, MD, from the Department of Gastrointestinal Oncology, Osaka International Cancer Institute, Osaka, Japan. Gastric neoplasms in familial adenomatous polyposis (FAP) patients were classified into 4 types based on endoscopic findings. Then, their clinical, histopathologic, and genetic features were investigated. Gastric neoplasms in patients with FAP are endoscopically and histopathologically characteristic …