Endoscopic en bloc resection of an exophytic gastrointestinal stromal tumor with suction excavation technique

Hyuk Soon Choi, Hoon Jai Chun, Kyoung Oh Kim, Eun Sun Kim, Bora Keum, Yoon Tae Jeen, Hong Sik Lee, Chang Duck Kim

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Here, we report the first successful endoscopic resection of an exophytic gastrointestinal stromal tumor (GIST) using a novel perforation-free suction excavation technique. A 49-year-old woman presented for further management of a gastric subepithelial tumor on the lesser curvature of the lower body, originally detected via routine upper gastrointestinal endoscopy. Abdominal computed tomography and endoscopic ultrasound showed a 4-cm extraluminally protruding mass originating from the muscularis propria layer. The patient firmly refused surgical resection owing to potential cardiac problems, and informed consent was obtained for endoscopic removal. Careful dissection and suction of the tumor was repeated until successful extraction was achieved without serosal injury. We named this procedure the suction excavation technique. The tumor's dimensions were 3.5 cm × 2.8 cm × 2.5 cm. The tumor was positive for C-KIT and CD34 by immunohistochemical staining. The mitotic count was 6/50 high-power fields. The patient was followed for 5 years without tumor recurrence. This case demonstrated the use of endoscopic resection of an exophytic GIST using the suction excavation technique as a potential therapy without surgical resection.

Original languageEnglish
Pages (from-to)5454-5458
Number of pages5
JournalWorld journal of gastroenterology
Issue number23
Publication statusPublished - 2016 Jun 21
Externally publishedYes


  • En bloc resection
  • Endoscopic resection
  • Gastrointestinal stromal tumor
  • Subepithelial tumor
  • Submucosal tumor

ASJC Scopus subject areas

  • Gastroenterology


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