Stenio de Cássio Zequi, MD, MSc, PhD Head of Referral Center for Urological Tumors Robotic and HIFU Programs at AC Camargo Cancer Center Livre-Docente Professor at São Paulo University/ Graduate School Antonio Prudente Foundation and Federal University of São Paulo LARCG – Latin American Renal Cancer Group- Founder and Coordinator discusses Management of the Complex Cystic Mass (Bosniak 3-4):Pro Surgical Treatment at the 18th International Kidney Cancer Symposium 2019, Miami, FL.