Tumor percent involvement predicts prostate specific antigen recurrence after radical prostatectomy only in men with smaller prostate.

Purpose: We determined the predictive power of tumor percent involvement on prostate specific antigen recurrence in patients when stratified by prostate weight.

Materials And Methods: Data on 3,057 patients who underwent radical prostatectomy between 1988 and 2008 was retrieved from our institutional prostate cancer database. Patients with data on tumor percent involvement, prostate volume and prostate specific antigen recurrence were included in analysis.