Early Gastric Signet Ring Cell Adenocarcinoma as a Flat Pale Patch on an Esophagogastroduodenoscopy

Affiliations

• ¹ Department of Medicine, University of Michigan, Ann Arbor, MI, USA.
• ² Department of Medicine, Juntendo University, Tokyo, Japan.
• ³ Department of Pathology, University of Michigan, Ann Arbor, MI, USA.
• ⁴ Department of Surgery, University of Michigan, Ann Arbor, MI, USA.