Renal cyst classification (CT / MRI) — the class is set by the most aggressive feature present.
Dominant feature
Select a feature
Pick the most aggressive feature the cyst shows.
Bosniak v2019 (Silverman et al., Radiology 2019). Requires a dedicated renal-mass CT/MRI protocol; enhancement = ≥20 HU increase on CT. Decision support only — not a substitute for clinical judgment.
Silverman SG, et al. Bosniak Classification of Cystic Renal Masses, Version 2019. Radiology. 2019;292(2):475–488.