What is the role of CT scanning in the preoperative workup of partial cystectomy?

Updated: Apr 03, 2019
  • Author: E Jason Abel, MD; Chief Editor: Bradley Fields Schwartz, DO, FACS  more...
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Answer

CT scanning of the abdomen and pelvis is more helpful in higher stage tumors to provide information regarding depth of tumor invasion, pelvic and paraortic lymphadenopathy, and the presence of liver or adrenal metastases. However, CT scans may fail to detect small nodal metastases in as many as 40% of patients. Liver metastases smaller than 2 cm in diameter are likewise difficult to detect. Also, CT scan is open to interpretation bias and can only estimate extravesical involvement.

CT scanning of the chest is the most sensitive test when evaluating for pulmonary metastases; however, many lesions smaller than 1 cm in diameter that may represent calcified granulomas are incidentally found. Plain radiography of the chest is less sensitive than CT for detection of metastases.


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