Background/Objectives: Metabolic dysfunction–associated steatotic liver disease (MASLD) has emerged as a major global etiology of chronic liver disease. However, the prognostic impact of MASLD in patients with non-B, non-C HCC (NBNC-HCC) following curative resection remains poorly defined. This study aimed to evaluate the prognostic significance of histologic SLD and MASLD-related components in this growing patient population. Methods: We retrospectively reviewed consecutive patients with NBNC-HCC receiving curative-intent hepatectomy between 2014 and 2023, excluding those with viral hepatitis or significant alcohol use. MASLD was defined as hepatic steatosis (≥5%) combined with at least one cardiometabolic risk factor (obesity, type 2 diabetes, dyslipidemia, or hypertension). Primary endpoints were overall survival (OS) and recurrence-free survival (RFS). Cox proportional hazards models were used to identify independent prognostic factors. Results: 169 (61.7%) patients fulfilled MASLD criteria. The MASLD group showed significantly better RFS (p = 0.039) and OS (p = 0.016). Notably, after multivariate adjustment, histologic SLD remained independently associated with reduced mortality (HR 0.55, 95% CI 0.32–0.93; p = 0.027), while MASLD status was attenuated. Subgroup analysis revealed that this survival benefit was most pronounced in non-cirrhotic patients (p = 0.027 for OS). Patients with MASLD also exhibited lower liver-related mortality (p = 0.028). Conclusions: Steatotic liver disease was independently associated with improved survival in NBNC-HCC patients undergoing curative hepatectomy, particularly in non-cirrhotic individuals. Given the increasing prevalence of MASLD, incorporating hepatic steatosis, metabolic components, and fibrosis status into risk stratification may help improve postoperative management in this distinct subgroup.
Wan et al. (Thu,) studied this question.