肝脏局灶性结节增生(focalnodularhyperplasia,FNH)是一种肝细胞源性良性肿瘤,发病率仅次于肝囊肿、肝血管瘤。以往曾有多种命名,如混合性肝腺瘤、良性肝细胞瘤、局限性肝硬变、孤立性再生结节等。1958年Edmondson等[1]依据其病理特点,称为肝局灶性结节增生。直到1975年被WHO承 Focal nodular hyperplasia (FNH) is a hepatocellular benign tumor with the second highest incidence of hepatic cysts and hepatic hemangiomas. In the past there have been a variety of names, such as mixed hepatoma, benign hepatoma, localized cirrhosis, solitary nodules and so on. 1958 Edmondson et al [1] based on its pathological features, known as focal nodular hyperplasia. Until 1975 by the WHO inherited