title: Composite neuroendocrine carcinoma with adenocarcinoma of the stomach misdiagnosed as a giant submucosal tumor.
abstract: A composite glandular/exocrine-endocrine carcinoma of the gastrointestinal tract is characterized by the co-existence of two adjacent, but histologically-distinct tumors in an organ. Composite glandular/exocrine-endocrine carcinomas are a special type of tumor comprised of common adenocarcinomas and neuroendocrine components that account for at least one-third of the entire tumor area. Composite tumors have been reported in a range of organs, but are relatively rare in the stomach. We report a case of a composite neuroendocrine carcinoma with an adenocarcinoma of the stomach (mixed exocrine-endocrine carcinoma), which was misdiagnosed as a giant submucosal tumor preoperatively based on esophagogastroduodenoscopy and a contrast-enhanced axial computed tomographic scan.
authors.affiliation: Department of Surgery, Catholic University of Daegu School of Medicine, Daegu, Korea.
authors.forename: Tae-Yoon
authors.initials: TY
authors.lastname: Kim
authors.forename: Hyun-Dong
authors.initials: HD
authors.lastname: Chae
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