Renal Cystic Lesion Bosniak Classification (CT/MRI) — free guideline decision tool
Look up the malignancy risk and management for a Bosniak 2019 renal cystic-lesion category (I–IV). Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does Renal Cystic Lesion Bosniak Classification (CT/MRI) do?
Translate a Bosniak category into a no-follow-up, imaging-follow-up or surgical pathway.
How is the result calculated?
I/II benign (~0%) no follow-up; IIF probably benign (~5%) imaging follow-up; III indeterminate (~50%) surgery or active surveillance; IV malignant (~90%) surgery. Enhancement = CT ≥ 20 HU or MR ≥ 15%.
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run Renal Cystic Lesion Bosniak Classification (CT/MRI) now
Look up the malignancy risk and management for a Bosniak 2019 renal cystic-lesion category (I–IV). Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.