NS syndrome:dystaxia, spastic paralysis,deafness and mental disability, but normal stature,normal or milder decreased function of thyroid gland.

• 神经性综合征：表现为共济失调、痉挛性瘫痪、耳聋和智能低下为特征，但身材正常、甲状腺功能正常或轻度减低。