CT staging of bladder carcinoma.

Area of Science:

• Urology
• Radiology
• Oncology

Background:

• Bladder cancer staging is crucial for treatment planning.
• Accurate assessment of tumor extent and metastasis is essential.

Purpose of the Study:

• To evaluate the accuracy of computed tomography (CT) for staging bladder carcinoma.
• To determine the effectiveness of CT in assessing tumor invasion and lymph node metastasis.

Main Methods:

• CT staging was performed in 49 patients with known bladder carcinoma.
• Accuracy was assessed in 25 patients with surgically confirmed disease stage.
• Diagnostic errors were analyzed, focusing on perivesical fat and lymph node involvement.

Main Results:

• Overall CT staging accuracy was 64% for surgically confirmed cases.
• Diagnostic errors were primarily related to assessing perivesical fat invasion.
• CT demonstrated 92% accuracy for lymph node metastasis (60% sensitivity, 100% specificity).

Conclusions:

• CT has a limited role in overall bladder carcinoma staging due to inaccuracies in assessing local invasion.
• CT is valuable for evaluating lymph node status in bladder cancer.
• CT cannot detect metastasis in non-enlarged lymph nodes, limiting its utility in staging.