肝脏大再生结节（Ｍａｃｒｏｒｅｇｅｎｅｒａｔｉｖｅｎｏｄｕｌｅｓ，ＭＲＮ）最初由Ｅｄｍｏｎｄｓｏｎ于１９７６年描述为继发于急慢性肝损害后的自限性、增生性病变．２０世纪８０年代以后，随着超声等影像诊断技术的发展，在慢性肝病中发现这种病变的报道越来越多，... Macroregenerative nodules (MRNs) of the liver were originally described by Edmondson in 1976 as a self-limiting, proliferative disease secondary to acute and chronic liver damage. Since the 1980s, with the development of diagnostic imaging techniques such as ultrasound, more and more reports of this disease have been found in chronic liver diseases.