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• W259702956 abstract "Intraoperative frozen section (FS) evaluation of ureteral and urethral margins is frequently requested during radical cystoprostatectomy in patients with bladder urothelial carcinoma. However, it is still controversial whether intraoperative FSs of ureteral and urethral margins are necessary in all patients with cystoprostatectomy or a risk-based assessment with limited to the high risk patients is the best approach. A total of 203 radical cystoprostatectomy specimens with FS evaluation on margin status from men treated for bladder urothelial carcinoma from 2003 to 2010 in our institution were reviewed. Clinicopathologic features studied include: patients' age, pathologic tumor stage, presence of carcinoma in- situ (CIS), and intraoperative FS diagnosis. All 203 patients had intraoperative FS evaluation of ureter, and of these, 37 patients had additional urethra FS evaluation. Of the 203 ureteral FS cases, 17 (8.4%) had positive margin for CIS (16 cases) or CIS with invasive urothelial carcinoma (1 case). All 17 patients with positive ureteral margin on FS had concomitant CIS in the bladder (15.5%; 17 of 110 patients). In contrast, none of the patients without concomitant CIS (n=93) had positive ureteral margins on FS. Among 37 patients who also had FS evaluation on urethral resection margin, 3 patients (8.1%) had positive margins for CIS and all three of them had concomitant CIS in the bladder. Positive ureteral/urethral margin was not associated with patients' age or tumor stage, but was significantly associated with the presence of CIS in the bladder (p<0.001). Our study demonstrates that presence of concomitant CIS in bladder cancer was often associated with positive ureteral or urethral margin for CIS or invasive carcinoma; therefore, intraoperative FS evaluation may be indicated to these patients with concomitant bladder CIS. In contrast, in patients with no associated concomitant CIS in the bladder, FS of ureteral/urethral margins may not be necessary unless other clinical justification is present." @default.
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• W259702956 date "2014-01-01" @default.
• W259702956 modified "2023-09-26" @default.
• W259702956 title "Intraoperative frozen section evaluation of ureteral and urethral margins: studies of 203 consecutive radical cystoprostatectomy for men with bladder urothelial carcinoma." @default.
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