Abstract: Objective:To understand the CT feature of the brain in patients with hypoparathyroidism.Mothods:nine patients with clinically proved hypoparathy roidism CT features of all patients were retrospectively analyzed.Results:CT manifestations of primary bilateral thalamus,basal ganglia,dentate nucleus and semiovale center symmetric calcification,corticomedullary junction symmetry or asymmetry of calcification of little.Conclusion:The calcified lesions seen in brain parenchyma were basically presented with bilateral symmetry.Its diagnosis must be connected with quantitative serum Ca and P.All cases were proved by the laboratory results of abnormal blood Ca and P.