J Korean Radiol Soc.  1990 Dec;26(6):1219-1224. 10.3348/jkrs.1990.26.6.1219.

The evaluation of computed tomographic finding in staging of vesical cancer

• Sun MS
• Han BS
• Kim SJ
• Chung SJ
• Shin SJ
• Oh JH
• Kim YS
• Kim YC

• KMID: 2358781
• DOI: http://doi.org/10.3348/jkrs.1990.26.6.1219

Abstract

Correct staging of the vesical cancer is very important in assessing of prognosis and therapy planning. Forevaluation of significancy and accuracy in determination of staging by CT, authors performed comparative studybetween preoperative computed tomographic staging using TNM classification and pathological staging in 20 cases ofpathologically proven vesical cancer. The overall accuracy of CT staging using TNM classification in 20 cases withpathologically confirmed vesical cancer staging was 80% and detecting rate of lymphadenopathy was 90%, sensitivitywas 85.7%, and speicificity was 92.3%. The rate of overstaging by CT scan was 15%(3/20) and understaging was5%(1/20). The causes of overstaging were misinterpretation of the previous inflammatory process or postbiopsyperivesical fibrosis as perivesical tumor growth and dilated and engorged vessels as lymphadenopathy.Non-detection of small sized lymph node was the cause of understaging. The major role of CT was in demonstratingextension of tumor outside the urinary bladder, so CT scan should be performed before biopsy and additional CTscan with position change is also helpful in equivocal case.

MeSH Terms

Biopsy
Classification
Fibrosis
Lymph Nodes
Lymphatic Diseases
Neoplasm Staging
Prognosis
Tomography, X-Ray Computed
Urinary Bladder