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Int. J. Mol. Sci. 2013, 14(12), 23629-23638; doi:10.3390/ijms141223629
Article

Colorectal Laterally Spreading Tumors by Computed Tomographic Colonography

1,2,* , 2,†
, 2,†
, 2,†
, 3,†
 and 1,3,†
Received: 20 July 2013; in revised form: 7 November 2013 / Accepted: 11 November 2013 / Published: 3 December 2013
(This article belongs to the Special Issue Advances in Cancer Diagnosis)
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Abstract: To date, few reports focused primarily on detecting colorectal laterally spreading tumors (LSTs) have been published. The aim of this study was to determine the visibility of LSTs on computed tomographic colonography (CTC) compared with that on colonoscopy as a standard. We retrospectively reviewed and matched data on endoscopic and CTC reports in 157 patients (161 LSTs) who received a multidetector CT scan using contrast media immediately after total colonoscopy at the National Cancer Center Hospital in Tokyo, Japan, between December 2005 and August 2010. The results of the total colonoscopy were known at the time of the CTC procedure and reading. Of the 161 LSTs detected on colonoscopy, 138 were observed and matched by CTC (86%). Of the 91 granular type LSTs (LST-Gs), 88 (97%) were observed and matched, while of the 70 non-granular type LSTs (LST-NGs), 50 (71%) were observed and matched by CTC (p < 0.0001). CTC enabled observation of 73% (22/30) of 20–29 mm, 83% (35/42) of 30–39 mm, 88% (49/56) of 40–59 mm, and 97% (32/33) of ≥60 mm tumors. The rate of observed LSTs by CTC was 86% (97% of LST-G, 71% of LST-NG) of the LSTs found during total colonoscopy.
Keywords: colonoscopy; colorectal cancer; computed tomographic colonography; laterally spreading tumor (LST colonoscopy; colorectal cancer; computed tomographic colonography; laterally spreading tumor (LST
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Kakugawa, Y.; Saito, Y.; Matsuda, T.; Nakajima, T.; Miyake, M.; Iinuma, G. Colorectal Laterally Spreading Tumors by Computed Tomographic Colonography. Int. J. Mol. Sci. 2013, 14, 23629-23638.

AMA Style

Kakugawa Y, Saito Y, Matsuda T, Nakajima T, Miyake M, Iinuma G. Colorectal Laterally Spreading Tumors by Computed Tomographic Colonography. International Journal of Molecular Sciences. 2013; 14(12):23629-23638.

Chicago/Turabian Style

Kakugawa, Yasuo; Saito, Yutaka; Matsuda, Takahisa; Nakajima, Takeshi; Miyake, Mototaka; Iinuma, Gen. 2013. "Colorectal Laterally Spreading Tumors by Computed Tomographic Colonography." Int. J. Mol. Sci. 14, no. 12: 23629-23638.



Int. J. Mol. Sci. EISSN 1422-0067 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert