Primary mesenteric neuroendocrine tumor that changed its internal composition from cystic to solid: a case report

Akira Yasuda, Hidehiko Kitagami, Yasuhiro Kondo, Keisuke Nonoyama, Kaori Watanabe, Shiro Fujihata, Hirotaka Miyai, Minoru Yamamoto, Yasunobu Shimizu, Moritsugu Tanaka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Mesenteric neuroendocrine tumors are usually metastases originating from the small intestine; however, primary mesenteric cases are rare. We present an interesting case of a mesenteric neuroendocrine tumor that changed its internal composition from cystic to solid. A 72-year-old male visited our hospital because of epigastralgia 4 years earlier. A 25-mm tumor was recognized around the terminal duodenum on computed tomography and magnetic resonance imaging, and was diagnosed as a cystic lesion. Over the following 2 years, the tumor grew to 40 mm and its internal composition changed from cystic to solid. The lesion showed positive findings on fluorodeoxyglucose positron emission tomography. Upon laparotomy, a solid tumor was detected in the mesentery of the jejunum near the ligament of Treitz. The tumor was extracted without intestinal resection and was diagnosed as a low-grade neuroendocrine tumor after histopathological and immunohistochemical examination. One year has passed since the operation, and there has been no recurrence.

Original languageEnglish
Pages (from-to)18-22
Number of pages5
JournalClinical Journal of Gastroenterology
Volume10
Issue number1
DOIs
Publication statusPublished - 01-02-2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Gastroenterology

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