Shunji Endo    Department   Kawasaki Medical School  Kawasaki Medical School, Department of Digestive Surgery,    Position   Associate Professor
Article types	原著
Language	English
Peer review	Peer reviewed
Title	Gastric neuroendocrine tumors in our institutions according to the WHO 2010 classification.
Journal	Formal name：International surgery Abbreviation：Int Surg ISSN code：25202456/00208868
Domestic / Foregin	Foregin
Volume, Issue, Page	97(4),pp.335-9
Author and coauthor	Endo Shunji, Dousei Tsutomu, Yoshikawa Yukinobu, Hatanaka Nobutaka, Taniyama Kiyomi, Yamauchi Amane, Kamiike Wataru, Nishijima Junichi
Authorship	Lead author
Publication date	2012/10
Summary	In 2010, World Health Organization classified gastric neuroendocrine tumor (NET) as follows: NET grade (G) 1, NET G2, neuroendocrine carcinoma (NEC). We reviewed 22 gastric NETs that were encountered in our institutions. Nine, 6, and 4 were NET G1, G2, and NEC, respectively. We also encountered 3 NET G3. NET G1 was treated with observation in 2 patients, endoscopic mucosal resection (EMR) in 3, and gastrectomy in 4 patients. No recurrence was experienced during a median of 53 months of follow-up. All NET G2 was treated with gastrectomy. No patient experienced recurrence during a median of 25 months of follow-up. NET G3 was treated with gastrectomy. One patient died of liver metastasis 52 months after gastrectomy. For NEC, gastrectomy was performed in 3 cases and no patients died of tumor-related death. We conclude that the prognoses of NET G1 and G2 were good. We also experienced long-term survivors of NEC. An accumulation of more patients is needed for further investigation.
DOI	10.9738/CC134.1
PMID	23294075