title: Ligation-assisted endoscopic enucleation for the treatment of colorectal submucosal tumours originating in the muscularis propria.
abstract: OBJECTIVE
  A ligation-assisted endoscopic enucleation (EE-L) technique was developed and was evaluated to determine its efficacy and safety for treating colorectal submucosal tumours (< 10 mm) originating in the muscularis propria.
  
  
  METHODS
  EE-L was used to treat 13 patients between January 2011 and January 2014. The tumour was sucked into a transparent cap and ligated at its base by a rubber band ligature attached to the tip of the endoscope. With the creation of a pseudo-stalk, the tumour was then enucleated using endoscopic dissection and the wound was closed with clips.
  
  
  RESULTS
  All tumours [median diameter 6.8 (4-10) mm] were successfully enucleated [procedure time 19 (11-27) min]. Histopathological examination identified 11 (84.6%) to be leiomyoma and 2 (15.4%) low-risk gastrointestinal stromal tumours. No perforations or massive haemorrhage occurred and there were no recurrences during a follow-up of 3-39 months.
  
  
  CONCLUSIONS
  EE-L is a successful technique for the removal of small colorectal tumours in the muscularis propria with few complications and enables a histopathological diagnosis. In this study, all the resected lesions had a benign pathology.
authors.affiliation: Endoscopic Center, Shengjing Hospital of China Medical University, Shenyang, China.
authors.forename: J
authors.initials: J
authors.lastname: Guo
authors.forename: S
authors.initials: S
authors.lastname: Wang
authors.forename: Z
authors.initials: Z
authors.lastname: Liu
authors.forename: S
authors.initials: S
authors.lastname: Sun
authors.forename: X
authors.initials: X
authors.lastname: Liu
authors.forename: S
authors.initials: S
authors.lastname: Wang
authors.forename: N
authors.initials: N
authors.lastname: Ge
authors.forename: G
authors.initials: G
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D015331:Cohort Studies; D003113:Colonoscopy / Q000379:methods*; D015179:Colorectal Neoplasms / Q000601:surgery*; D004210:Dissection / Q000379:methods; D005260:Female; D046152:Gastrointestinal Stromal Tumors / Q000601:surgery*; D006801:Humans; D007413:Intestinal Mucosa / Q000601:surgery*; D007889:Leiomyoma / Q000601:surgery*; D008026:Ligation / Q000379:methods; D008297:Male; D008875:Middle Aged
keywords: Ligation; colorectal; enucleation; muscularis propria; submucosal tumour