Idiopathic hypoparathyroidism with extensive brain calcification and persistent neurologic dysfunction.

Idiopathic hypoparathyroidism is an uncommon cause of movement disorders. The following case illustrates the persistence of a parkinsonian gait 2 years after the restoration of normal serum calcium levels. The extensive calcifications in the brain presumably account for this as well as for the persistent mild dementia. The importance of identifying hypoparathyroidism early in the course is graphically illustrated.