J Korean Radiol Soc.  1988 Feb;24(1):132-137. 10.3348/jkrs.1988.24.1.132.

Accuracy of computed tomography (CT) staging in bladder carcinoma

• Lee CK
• Song HJ
• Lim JH
• Ko YT
• Kim SY

• KMID: 2359322
• DOI: http://doi.org/10.3348/jkrs.1988.24.1.132

Abstract

CT is a very convenient and noninvasive method in the staging of bladder carcinoma as CT gives accurateinformation of extension of tumor outside the bladder onto the neighboring structures and pelvic side walls. CT isalso a very useful method in determination of lymph nodes or distant metastasis. In order to determine theaccuracy and significancy of CT staging in bladder carcinoma, authors performed this comparative study betweenpreoperative (prospective) CT staging and pathologic staging in 30 cases of bladder carcinoma. Overall accuracy ofCT staging in bladder carcinoma was 66% and detection in lymphadenopathy was 83%. This result is considerablesuperior tot he accuracy of conventional staging method in bladder carcinoma which shows 50-60% accuracy.Overstagin by CT was 20% and undestaging was 13%. These are due to microscopic invasion of tumor which is notdetected by CT, false positive and false negative lymphadenopathy. It is considered that high resolution CTscanning with some modified scan technique is essential for correct staging of bladder carcinoma.

MeSH Terms

Lymph Nodes
Lymphatic Diseases
Methods
Neoplasm Metastasis
Urinary Bladder*