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Definition:
Intervention with the intent to slow the growth, cause necrosis, or resect from the liver an HCC.
Comments:
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Examples include loco-regional ablation, surgical resection, and systemic chemotherapy.
- Examples of loco-regional ablation include transhepatic arterial chemo-embolization or ablation (e.g., radio-frequency ablation, cryoablation).
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Observations treated by locoregional ablation (i.e., ablated or located within a region of the liver that was embolized) should be designated LR-Treated, regardless of whether treatment was successful.
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Observations undergoing systemic therapy should be assigned their pre-treatment LI-RADS category regardless of treatment-related changes in imaging features; the pre-treatment LI-RADS category should not be downgraded.
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