title: Carcinoid tumors of the small-bowel: evaluation with 64-section CT-enteroclysis.
abstract: OBJECTIVE
  To describe the imaging presentation of carcinoid tumors of the small-bowel at 64-section CT-enteroclysis and determine the sensitivity of this technique for tumor detection.
  
  
  METHODS
  The 64-section CT-enteroclysis examinations of 22 patients with histopathologically proven small-bowel carcinoid tumors and those of 6 patients with suspected recurrence after small-bowel resection for carcinoid tumor were reviewed. Images were analyzed with respect to imaging presentation. Sensitivity, specificity, and accuracy, of 64-section CT-enteroclysis for the diagnosis of carcinoid tumor of the small-bowel were estimated with 95% confidence intervals (CIs).
  
  
  RESULTS
  Twenty-five carcinoid tumors were confirmed in 22 patients (prevalence, 22/28; 79%). Overall sensitivity for carcinoid tumor detection was 76% (19/25; 95%CI: 55-91%) on a per-lesion basis. On a per-patient basis, 64-section CT-enteroclysis had a sensitivity of 86% (19/22; 95%CI: 65-97%), a specificity of 100% (6/6; 95%CI: 54-100%) and an accuracy of 89% (25/28; 95%CI: 72-98%) for the diagnosis of carcinoid tumor. Focal small-bowel wall thickening, mesenteric stranding, and mesenteric mass were found in 20/22 (91%), 18/22 (82%) and 15/22 (68%) patients with pathologically confirmed tumors.
  
  
  CONCLUSIONS
  64-Section CT-enteroclysis shows highly suggestive features for the diagnosis of carcinoid tumor of the small-bowel and achieves high degrees of sensitivity for tumor detection.
authors.affiliation: Department of Body and Interventional Imaging, Hôpital Lariboisière - AP-HP, 2 rue Ambroise Paré, 75475 Paris Cedex 10, France. philippe.soyer@lrb.aphp.fr
authors.forename: Philippe
authors.initials: P
authors.lastname: Soyer
authors.forename: Anthony
authors.initials: A
authors.lastname: Dohan
authors.forename: Clarisse
authors.initials: C
authors.lastname: Eveno
authors.forename: Xavier
authors.initials: X
authors.lastname: Dray
authors.forename: Lounis
authors.initials: L
authors.lastname: Hamzi
authors.forename: Christine
authors.initials: C
authors.lastname: Hoeffel
authors.forename: Rachid
authors.initials: R
authors.lastname: Kaci
authors.forename: Mourad
authors.initials: M
authors.lastname: Boudiaf
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002276:Carcinoid Tumor / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007414:Intestinal Neoplasms / Q000000981:diagnostic imaging*; D007421:Intestine, Small / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult