The clinical manifestations of the late onset GM 2 gangliosidosis were nonspecific, the ballooned neurons with cytoplasmic deposits were found under the light microscopy. The deposits were membranous cytoplasmic bodies(MCB) together with zebra bodies.

• 晚发型 GM2 神经节苷脂沉积症的临床表现无特异性 ,光镜下神经元呈气球样肿胀 ,胞浆内有脂质沉积 ,电镜观察见沉积物为膜性胞浆体和斑马体。