Report of a Case of Signet Ring Carcinoma Presenting as Gastric Mucosal Thickening: A Diagnostic Dilemma Journal title: Bezmiâlem Science Authors: Cumali KARATOPRAK, Adem AKÇAKAYA, Hakan ŞENTÜRK, Ganime ÇOBAN, Nurhan ŞAHİN, Hacı Mehmet TÜRK Subject(s): Medicine