Background: The oncological outcomes of bladder cancer are directly associated with disease pathology and surgical technique. Therefore, we investigated the pathologic factors of radical cystectomy (RC) specimens. Methods: In this retrospective study, 365 patients who underwent RC between March 2013 to March 2018 in hospitals affiliated to Shiraz University were enrolled. The patients' clinicopathological parameters, such as tumor type, tumor grade, carcinoma in situ, lymph node (LN) involvement, lymphovascular invasion (LVI), perineural invasion (PNI), and age, were recorded from their pathology reports. For comparison of variables, an independent t test was used. P < 0.05 was regarded as significant. The statistical software SPSS version 22 was used to examine the data. Results: The participants' mean age was 64.52 ± 11.54 years, and 320 (87.7%) patients were men and 45 (12.3%) were women. The mean dissected LN was 9.69 ± 8.70 nodes and 1.06 ±3.49 of the dissected LNs were involved by tumor. PNI and perivesical invasion were presented in 148 (40.5%) and 96 (26.3%) patients, respectively. Ureteral, urethral, and prostate involvements were seen in 23 (6.3%), 50 (13.7%), and 66 (18.1%) patients. Most patients had pathologic tumor stage 2 (36.4%). Factors such as LVI, PNI, perivesical invasion, and prostate involvement, were strongly correlated with positive LN (P ≤ 0.05). Conclusion: The examination of the RC specimen is critical for patient care, outcome, and justification of adjuvant therapy. Factors such as LVI, perineural invasion, perivesical invasion, and prostate involvement were strongly correlated with positive LN.
Keywords: Bladder Cancer; Lymph Node; Pathology; Radical Cystectomy.
© 2021 Iran University of Medical Sciences.