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Guideline Current ACR 2017

ACR Incidental Liver Lesion

ACR white paper on incidental liver lesions in patients without underlying liver disease. Stratified by size, imaging features, and patient risk (low vs high risk of malignancy).

Updated Jul 5, 2026
Applies to
  • Incidentally detected liver lesions on CT or MRI
Classification
  • Feature group Benign
  • Feature group Probably benign
  • Feature group Indeterminate
  • Feature group Suspicious
Exclusions
  • Patients at high risk for HCC (use LI-RADS)
Interactive

Decision tree

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Recommendation builder

Choose the category for a liver lesion in a patient without underlying liver disease.

FAQ

Frequently asked

Does this guideline apply to oncology patients?

No — patients with known malignancy fall outside the scope unless the guideline states otherwise. Follow oncologic surveillance protocols instead.