We report the CT findings in a 64-year-old women with 30-year history of hypoparathyroidism after thyroidectomy. She had recurrent episodes of tetany with carpopedal spasm and facial twitch related to hypocalcemia. On CT, there were symmetric calcifications in the basal ganglia and dentate nuclei and asymmetric calcified densities in the paraventricular areas and corona radiata.