From: Role of magnetic resonance imaging in characterization of cystic renal lesions based on Bosniak classification version 2019
Bosniak class
Original Bosniak
Bosniak 2019
II
2(2.4%)
4(4.8%)
IIF
14 (16.7%)
26 (31.0%)
III
38(45.2%)
23 (27.4%)
IV
30 (35.7%)
31(36.9%)