🫀 Liver LI-RADS (CT/MRI HCC) Category
Compute the liver LI-RADS category (LR-3/4/5) from at-risk status, size and major features, with management. Instant, browser-side.
Liver LI-RADS (CT/MRI HCC) Category
At high risk for HCC (cirrhosis / chronic HBV / prior HCC)
Lesion size (mm)
Non-rim arterial-phase hyper-enhancement (APHE)
Non-peripheral washout
Enhancing capsule
Threshold growth (≥ 50% / ≤ 6 months)
When to use
Categorise an observation on diagnostic CT/MRI in patients at high risk for HCC.
How it works
Major features — non-rim APHE, size, non-peripheral washout, enhancing capsule, threshold growth (≥ 50%/≤ 6 mo) — combine to LR-3/4/5. 10–19 mm + APHE + washout or threshold growth = LR-5.
Key points
- LI-RADS applies only to patients at high risk for HCC (cirrhosis, chronic HBV, prior HCC).
- LR-5 allows non-invasive HCC diagnosis without biopsy.
- LR-M (non-HCC malignancy) and LR-TIV (venous invasion) are adjudicated separately.
- Capsule alone vs washout/threshold-growth changes the category in the 10–19 mm + APHE band.
References
Decision support for licensed clinicians only; not a substitute for clinical judgement, diagnosis or local protocols.