Korean J Med.  2002 Nov;63(5):477-487.

Usefulness of hydrocolonic sonograpy in the staging of colorectal cancer

  • 1Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea. jbchung@yumc.yonsei.ac.kr
  • 2Department of Diagnostic Radiology, Yonsei University College of Medicine, Seoul, Korea.
  • 3Department of Pathology, Yonsei University College of Medicine, Seoul, Korea.


BACKGROUND: The purpose of this study was to evaluate the usefulness of hydrocolonic sonography (HUS) in local staging of colorectal cancer.
Thirty patients with colorectal cancer underwent HUS for clinical TNM staging before operation and then the preoperative staging was correlated with postoperative histological stage.
All cases were correctly localized by HUS. The accuracy of depth of invasion (T staging) was 70% in overall cases. When divided into colon and rectal cancer, T staging was more accurate in colon cancer (88%), however, less accurate in rectal cancer (46.1%). The accuracy was higher especially in aspect of pericolic fat infiltration (93%). In N staging, the accuracy was 60% in overall cases, 71% in colon cancer and 46% in rectal cancer, respectively. The accuracy of N staging by HUS were somewhat poor on the whole due to technical properties.
HUS is very valuable with respect to T staging, especially in colon cancer rather than in rectal cancer. N staging was somewhat doubtful in both. Because HUS is easy, noninvasive, and readily available at any place, it would be useful method for local staging colon cancer, especially T staging.


Hydrocolonic sonography; Colorectal Neoplasms; Preoperative; TNM staging

MeSH Terms

Colonic Neoplasms
Colorectal Neoplasms*
Neoplasm Staging
Rectal Neoplasms
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