PD06-06 THE EFFECT OF NEUROVASCULAR BUNDLE PRESERVATION ON CHANGES IN PENIS LENGTHS AND ELASTICITY SCORES FOLLOWING RADICAL PROSTATECTOMY

RESULTS: 128 patients (40%) were found to have CaP in their biopsies: 61 patients (19%) had insignificant CaP and 67 patients (21%) had csCaP. 52 (78%) of 67 patients with missed csCaP had Gleason 3+41⁄47. 105 patients (32%) were in Active Surveillance at the time of their biopsies. Of these, 27 patients (26%) had csCaP with negative mpMRI. Logistic regression indicated that patients with high PCA3, high PSA density, a prior positive biopsy and smaller prostate volume are directly related to having csCaP in the presence of negative mpMRI (p<0.05). CONCLUSIONS: Despite recent advancement of MRI technology, negative mpMRI cannot rule out csCaP completely. 40% of men with negative mpMRI were diagnosed with CaP. Of these, 21% of men harbored csCaP. All clinical factors should be considered before eliminating a systematic biopsy because the MRI is unrevealing.