马凡综合征是以蜘蛛状指(趾)、身体瘦长、晶体脱位三者为主要特点的遗传性综合病征。常伴有先天性心脏病等多种畸形。遗传方式主要为常染色体显性遗传。本病由Marfan(1896)首先报告,以后文献有较多报告。Croos(1973)报告142例,陆炳新(1984)汇集了11省市58个家系195例患者进行了报道,可见本病并非 Marfan syndrome is a spider-like finger (toe), the body is slender, crystal dislocation of the three main features of the hereditary syndrome. Often accompanied by congenital heart disease and other deformities. The main way of genetic autosomal dominant inheritance. The disease was first reported by Marfan (1896) and later reported in the literature. 142 cases were reported by Croos (1973) and 195 cases were reported by Lu Bingxin (1984) in 58 families of 11 provinces and cities. It is obvious that this disease is not