Diagnosis and treatment of a gastric hamartomatous inverted polyp: Report of a case

Masahiko Aoki, Masashi Yoshida, Yoshiro Saikawa, Yoshihide Otani, Tetsuro Kubota, Koichiro Kumai, Go Wakabayashi, Tai Omori, Makio Mukai, Masaki Kitajima

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


Gastric hamartomatous polyps are rare and difficult to diagnose. We report the case of a 43-year-old woman admitted to our hospital after an upper gastrointestinal series revealed a submucosal tumor. Upper gastrointestinal endoscopy showed a submucosal tumor (SMT), which was eroded with a depression on its surface, in the upper corpus. Endoscopic ultrasonography showed a heterogeneous tumor in the third layer. A laparoscopic wedge resection of the stomach allowed us to perform complete resection of the tumor, which measured 2.8 cm in diameter. The pathological diagnosis was a gastric hamartomatous inverted polyp. The postoperative course was uneventful. Only 27 cases of gastric hamartomatous polyps have been reported in Japan. Hamartomatous inverted polyps without a stalk are classified as the "SMT type" because the tumor is inverted into the submucosal layer, whereas polyps with a stalk are classified as the "polyp type." All of the polyps in past reports were resected endoscopically; however, laparoscopic wedge resection may be indicated for SMT-type hamartomatous inverted polyps larger than 2.0 cm in diameter.

Original languageEnglish
Pages (from-to)532-536
Number of pages5
JournalSurgery today
Issue number6
Publication statusPublished - 2004
Externally publishedYes


  • Gastric hamartomatous polyp
  • Hamartomatous inverted polyp
  • Laparoscopic wedge resection
  • Submucosal tumor

ASJC Scopus subject areas

  • Surgery


Dive into the research topics of 'Diagnosis and treatment of a gastric hamartomatous inverted polyp: Report of a case'. Together they form a unique fingerprint.

Cite this