| Autor: |
Yoshifumi Sano, Shoichi Saito, Hiroshi Kawachi, Jun Tsutsumi, Junko Fujisaki |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Case Reports in Gastroenterology, Vol 15, Iss 1, Pp 323-331 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
1662-0631 |
| DOI: |
10.1159/000513802 |
| Popis: |
Gastric mixed adenocarcinoma-neuroendocrine tumor (NET) is a rare composite tumor, and a limited number of studies have reported on it. A 77-year-old man was admitted to our hospital because of acute cholecystitis. He underwent a cholecystectomy. Esophagogastroduodenoscopy during his admission revealed a slightly elevated tumor, and biopsy demonstrated a well-differentiated tubular adenocarcinoma. The tumor was resected completely by endoscopic submucosal dissection. Histological findings showed that it measured 9 mm in diameter, was located within the mucosa, and consisted of well-differentiated tubular adenocarcinoma and a NET G1. The NET was covered with adenocarcinoma and both components exhibited histological continuity. The NET and a part of the adenocarcinoma component showed a positive reaction for chromogranin A and synaptophysin. Neither enterochromaffin-like cell hyperplasia nor endocrine cell micronest surrounded the tumor. The diagnosis was gastric mixed adenocarcinoma-NET. The histological continuity between the two components can be likened to the same histogenesis. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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