Body Mass Index and prostatic specific antigen are independent predictors of multiple prostate cancer lymph node metastases in Caucasian patients undergoing robot assisted radical prostatectomy and extended pelvic lymph node dissection.

To investigate the risk factors contributing to multiple lymph node invasion (LNI) in patients with prostate cancer (PCa) undergoing extended pelvic lymph node dissection (ePLND) during robot assisted radical prostatectomy (RARP).