Bosniak Classification
Management
Bosniak I: No work-up
Bosniak II: No work-up
Bosniak IIF: Requires follow-up. Needs ultrasound/CT/MRI follow up - no strict rules on the time frame but reasonable at 6 months.
Bosniak III: Partial nephrectomy or radiofrequency ablation in elderly or poor surgical candidates
Bosniak IV: Partial or total nephrectomy
Bosniak classification system of renal cystic masses
Bosniak Classification of Cystic Renal Masses, Version 2019: An Update Proposal and Needs Assessment