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Tumor Necrosis Impacts Prognosis of Patients Undergoing Curative-Intent Hepatocellular Carcinoma
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Tumor Necrosis Impacts Prognosis of Patients Undergoing Curative-Intent Hepatocellular Carcinoma
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Journal Article
Tumor Necrosis Impacts Prognosis of Patients Undergoing Curative-Intent Hepatocellular Carcinoma
2021
Overview
BackgroundThe impact of tumor necrosis relative to prognosis among patients undergoing curative-intent resection for hepatocellular carcinoma (HCC) remains ill-defined.MethodsPatients who underwent curative-intent resection for HCC without any prior treatment between 2000 and 2017 were identified from an international multi-institutional database. Tumor necrosis was graded as absent, moderate (< 50% area), or extensive (≥ 50% area) on histological examination. The relationship between tumor necrosis, clinicopathologic characteristics, and long-term survival were analyzed.ResultsAmong 919 patients who underwent curative-intent resection for HCC, the median tumor size was 5.0 cm (IQR, 3.0–8.5). Tumor necrosis was present in 367 (39.9%) patients (no necrosis: n = 552, 60.1% vs < 50% necrosis: n = 256, 27.9% vs ≥ 50% necrosis: n = 111, 12.1%). Extent of tumor necrosis was also associated with more advanced tumor characteristics. HCC necrosis was associated with OS (median OS: no necrosis, 84.0 months vs < 50% necrosis, 73.6 months vs ≥ 50% necrosis: 59.3 months; p < 0.001) and RFS (median RFS: no necrosis, 49.6 months vs < 50% necrosis, 38.3 months vs ≥ 50% necrosis: 26.5 months; p < 0.05). Patients with T1 tumors with extensive ≥ 50% necrosis had an OS comparable to patients with T2 tumors (median OS, 62.9 vs 61.8 months; p = 0.645). In addition, patients with T2 disease with necrosis had long-term outcomes comparable to patients with T3 disease (median OS, 61.8 vs 62.4 months; p = 0.713).ConclusionTumor necrosis was associated with worse OS and RFS, as well as T-category upstaging of patients. A modified AJCC T classification that incorporates tumor necrosis should be considered in prognostic stratification of HCC patients.
Publisher
Springer Nature B.V
Subject
