A case of type 3 gastric neuroendocrine tumor with detailed endoscopic examination before treatment

Kazuaki Norita, Waku Hatta, Tomoyuki Koike, Yutaka Kondo, Nobuyuki Ara, Kiyotaka Asanuma, Naoki Asano, Atsuko Kasazima, Hironobu Sasano, Toru Shimosegawa

Research output: Contribution to journalArticlepeer-review


A 41-year-old man was referred to our hospital for further examination of a tumor in the stomach. Esophagogastroduodenoscopy (EGD) showed a submucosal tumor-like elevated tumor of 2.5 cm in diameter with a reddish deep depression at the lower body of the stomach. In addition, magnified narrow-band imaging showed dilated vessels at the marginal elevated area and a large villous structure and small vessel without change of caliber at the central depressed area of the tumor. The tumor was diagnosed as a neuroendocrine tumor (NET) by endoscopic biopsy. Endoscopic findings including the dilated blood vessels were useful for the correct diagnosis. Computed tomography (CT) detected a swollen lymph node of 6.9 cm in diameter located close to the tumor. Because the tumor was a sporadic type in a patient without underlying diseases, this tumor was diagnosed as type 3 gastric NET. Therefore, we performed distal gastrectomy with lymph node dissection. The pathological diagnosis was NET (G2), pT3N1M0, pStage b (ENETS). No recurrence has occurred for 24 months after surgery.

Original languageEnglish
Pages (from-to)177-183
Number of pages7
Issue number2
Publication statusPublished - 2017

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Gastroenterology


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