title: [Efficacy of endoscopic resection for small rectal carcinoid: a retrospective study].
abstract: OBJECTIVE
  Well differentiated rectal carcinoid tumors which are less than 1cm in diameter can be treated by endoscopic resection. We aimed to evaluate the efficacy of endoscopic resection in treating small sized rectal carcinoids.
  
  
  METHODS
  Medical records of 30 rectal carcinoid cases treated by endoscopic resection in Yonsei University College of Medicine, Severance Hospital between January 1995 and March 2007 were reviewed retrospectively.
  
  
  RESULTS
  Mean age was 49.7 years and male to female ratio was 1:0.88. Mean size of tumor was 6.29+/-3.06 mm and 25 out of 30 patients (83.3%) had tumors of diameter less than 10 mm. Twenty-two out of 30 patients treated by conventional polypectomy, 6 by endoscopic mucosal resection using a transparent cap (EMR-C) and 2 by endoscopic submucosal dissection (ESD). Histological examination revealed that 9 patients had resection margin positive for tumor; 7 (31.8%) were in polypectomy group, 1 (16.7%) in EMR-C group, and 1 (50%) in ESD group (p=0.868). Five patients underwent transanal excision to remove residual tumor. No residual tumor was found in additionally resected tissue. Mean follow-up duration was 19. 3 months (range 0-122), and there were no recurrence.
  
  
  CONCLUSIONS
  Endoscopic resection is an effective method in the treatment of small rectal carcinoids. However, long-term outcome remains to be elucidated by a large scaled prospective study.
authors.affiliation: Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Yu Jin
authors.initials: YJ
authors.lastname: Kim
authors.forename: Sang Kil
authors.initials: SK
authors.lastname: Lee
authors.forename: Jae Hee
authors.initials: JH
authors.lastname: Cheon
authors.forename: Tae Ill
authors.initials: TI
authors.lastname: Kim
authors.forename: Yong Chan
authors.initials: YC
authors.lastname: Lee
authors.forename: Won Ho
authors.initials: WH
authors.lastname: Kim
authors.forename: Jae Bock
authors.initials: JB
authors.lastname: Chung
authors.forename: Seung Woo
authors.initials: SW
authors.lastname: Yi
authors.forename: Semi
authors.initials: S
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D002276:Carcinoid Tumor / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D003710:Demography; D016099:Endoscopy, Gastrointestinal; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008866:Microsurgery; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D012189:Retrospective Studies; D016896:Treatment Outcome