PURPOSE: We assessed the oncological outcome of penile conserving surgery and identified parameters predicting local recurrence, including resection margins.
MATERIALS AND METHODS: A total of 179 patients with invasive penile cancer treated with organ sparing surgery at a tertiary center between 2002 and 2010 fulfilled our study criteria. Demographic, histopathological, management and followup data were recorded in a prospective database. Local, regional and distant recurrence rates, time to recurrence and survival rates were calculated. Survival analysis was performed by the Kaplan-Meier method. Multivariate analysis was used to identify predictors of local recurrence.
RESULTS: Mean followup was 42.8 months (range 4 to 107). Local, regional and distant metastatic recurrence developed in 16 (8.9%), 19 (10.6%) and 9 patients (5.0%) at a mean of 26.1, 26.8 and 11.7 months, respectively. The 5-year disease specific survival rate after recurrence was 54.7% (95% CI 46.1-63.3). For patients with isolated local recurrence the 5-year disease specific survival rate was 91.7% compared to 38.4% for those with regional recurrence. The overall 5-year local recurrence-free rate was 86.3% (95% CI 82.6-90.4). Tumor grade (p = 0.003), stage (p = 0.021) and lymphovascular invasion (p = 0.014) were identified as predictors of local recurrence on multivariate analysis.
CONCLUSIONS: Penile conserving surgery is oncologically safe and a surgical excision margin of less than 5 mm is adequate. Higher local recurrence rates are associated with lymphovascular invasion, and higher tumor stage and grade. Local recurrence has no negative impact on long-term survival.
Philippou P, Shabbir M, Malone P, Nigam R, Muneer A, Ralph DJ, Minhas S. Are you the author?
Department of Andrology, Institute of Urology, University College London Hospitals, London, United Kingdom.
Reference: J Urol. 2012 Sep;188(3):803-8.