如图所示，存在于几乎全部肝细胞中的淡褐色细小颗粒状色素称为脂色素（脂褐素）。箭头所示为肝细胞的脂褐素沉着。自身吞噬溶酶体长时间积聚形成的“损耗性”色素。该色素不具有实际的病理意义。
The pale golden brown finely granular pigment seen here in nearly all hepatocytes is lipchrome (lipofuscin). One such deposit within a hepatocyte is marked by the arrow. This is a "wear and tear" pigment from the accumulation of autophagolysosomes over time. This pigment is of no real pathologic importance.
