非酒精性脂肪肝(NAFL)是一种无过量饮酒史(或酒精摄入量<20g/d)致肝实质细胞脂肪变性和脂肪贮积,并以肝细胞脂肪变、气球样变、弥散性肝小叶轻度炎症和(或)肝中央静脉、肝窦周围胶原沉积等为临床病理特征的慢性肝脏疾病或非酒精性脂肪贮积综合征。其最主要的组织病理学改变为 Non-alcoholic fatty liver disease (NAFL) is a history of excessive alcohol consumption (or alcohol intake <20g / d) in hepatic parenchymal cells that cause fatty degeneration and fat accumulation. Hepatic steatohepatitis, Mild hepatic lobule inflammation and (or) central hepatic veins, hepatic sinusoidal collagen deposition and other clinical and pathological features of chronic liver disease or non-alcoholic fat accumulation syndrome. The most important histopathological changes were