局灶性肝内结节增生被认为是肝细胞对血管异常的一种局部增生性反应，是一种良性病变。这种病变通常见于年轻女性，常被影像检查发现。虽然口服避孕药与肝细胞腺瘤的产生和恶化有关，但其对于局灶性肝内结节增生（ＦＮＨ）的产生及恶变还有争论。从１９８９～１９９８年，作者 Focal nodular hyperplasia of liver cells is considered to be a local vascular abnormalities in a proliferative reaction is a benign disease. This disease is usually seen in young women, often found by imaging examination. Although oral contraceptives are associated with the development and progression of hepatocellular adenomas, there is debate about the production and malignancy of focal intrahepatic nodular hyperplasia (FNH). From 1989 to 1998, the author