Virtual colonoscopy in stenosing colorectal cancer

Between 5 and 10% of the patients undergoing a colonoscopy cannot have a complete procedure mainly due to stenosing neoplastic lesion of restum or distal colon. Nevertheless the elective surgical treatment concerning the stenosis is to be performed after the pre-operative assessment of the colonic segments upstream the cancer..The aim of this study is to illustrate, our experience with the Computed Tomographic Colonography (CTC) for the pre-operative assessment of the entire colon in the patientswith stenosing colorectal cancers.

Methods: From January 2005 till March 2009, we observed and treated surgically 43 patients with stenosing colorectal neoplastic lesions.

All patients did not tolerate the pre-operative colonoscopy. For this reason they underwent a pre-operative CTC in order to have a complete assessment of the entire colon.

All patients underwent a follow-up colonoscopy 3 months after the surgical treatment. The CTC results were compared with both macroscopic examination of the specimen and the follow-up coloscopy.

Results: The pre-operative CTC showed four synchronous lesions in four patients ( 9.3% of the cases).

The macroscopic examination of the specimen revealed three small sessile polyps (3 - 4mm in diameter) missed in the pre-operative assessment near the stenosing colorectal cancer. The follow-up colonoscopy showed four additional sessile polyps with a diameter between 3 - 11mm in three patients.Our experience shows that CTC has a sensitivity of 83,7%.

Conclusions: In patients with stenosing colonic lesions, CTC allows to assess the entire colon pre-operatively avoiding the need of an intraoperative colonoscopy More synchronous lesions are detected and treated at the time of the elective surgery for the stenosing cancer avoiding further surgery later on.

Author: Marco CoccettaCarla MigliaccioFrancesco La MuraEriberto FarinellaIoanna GalanouPamela Del MonacoAlessandro SpizzirriVincenzo NapolitanoAlessandro SpizzirriDiego MilaniRoberto CirocchiFrancesco Sciannameo
Credits/Source: Annals of Surgical Innov

Published on: 2009-11-09

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