蜘蛛样指（英语：Arachnodactyly）是一种手指和脚趾异常细长的先天性或后天性疾病，而患者的拇指倾向手掌[1]。目前已经发现小纤维蛋白-1（fibrillin-1、FBN1）和小纤维蛋白-2（FBN2）的突变，与蜘蛛样指相关。此外，蜘蛛样指被指可能与高胱氨酸尿症、先天性挛缩细长指、Loeys-Dietz综合征、马凡氏症候群[2]和埃勒斯-当洛二氏症候群[3] 有关。
参考资料
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