They were presented as symetrical high density calcified focis,which were located in the area of basal ganglia, nuclei dentatus cellebella and corticomedular commissure of fronto-parietal lobe.

• 发现甲旁减患者颅内钙化以基底节、小脑齿状核和额顶叶皮髓质交界区为多见，分布两侧较对称，内囊未见受累。