Radiofrequency ablation vs. surgery for perivascular hepatocellular carcinoma: Propensity score analyses of long-term outcomes

•Surgery provided better PFS and OS compared to RFA for small periportal HCCs. •There was significant interaction between treatment and vessel types for outcomes. •Evaluating type of peritumoral vessel may determine treatment strategy for HCCs. Background & Aims The therapeutic outcomes of surgical resection (SR) or radiofrequency ablation (RFA) for perivascular hepatocellular carcinoma (HCC) have not been compared. The aim of this study was to...