肝血管瘤包括海绵状血管瘤、硬化性血管瘤、血管内皮瘤(?)细血管瘤,后三种罕见,所以临床所称肝血管瘤系指肝海绵窦状血管瘤。本病均为胚胎发育中血管发育异常所致,在肝内良性肿瘤中占首位,可发生于任何年龄,尸检发现率为0.4～7.0%。因为发病隐匿,生长缓慢,仅13.8%产生症状,所以在当代影像学检查问世之前,报道甚 Hepatic hemangiomas include cavernous hemangiomas, sclerosing hemangiomas, hemangioendothelioma (?) Hemangiomas, and the latter three are rare. Therefore, hemangiomas in clinic are referred to as hepatic cavernous sinus hemangiomas. The disease is caused by abnormal vascular development during embryonic development. It accounts for the first place among benign intrahepatic neoplasms and can occur at any age. The autopsy detection rate is 0.4 to 7.0%. Because of the occult onset and slow growth, only 13.8% of the patients developed symptoms. Therefore, before the advent of contemporary imaging studies, reports