遗传性对称性色素异常症是一种比较少见的显性遗传性皮肤病。主要临床表现为肢端出现多数豆大色素脱失斑,其中心有岛状淡或深褐色色素沉着,边缘亦有色素增加。作者见到一家系中同患此病者8例,现报告如下。先证者男,20岁,农民,汉族,未婚。10岁发现于手背、足背出现白色斑点和褐 Hereditary Symmetry Dyslexia is a relatively rare dominant hereditary skin disease. The main clinical manifestations of extremity most pigmented depigmentation spots, the center of pale or dark brown island pigmentation, the edge also has increased pigment. The author saw a family of 8 patients with this disease, the report is as follows. Probabilist male, 20 years old, peasant, Han nationality, unmarried. 10-year-old found in the back of the hand, feet appear white spots and brown