Diffuse Cerebral Calcification due to Iatrogenic Hypoparathyroidism

A 63-year-old woman was evaluated in the emergency department for generalized tonic clonic seizure lasting 2-3 minutes, which was accompanied by contractions in her body and urinary incontinence. She gave a history of similar convulsions for the last 15 years, eight of which were clustered in the last year. She also reported that she sometimes had numbness, a tingling sensation in her hands and face, and cramps and weakness in her legs. She had a history of thyroidectomy for multinodular goiter 32 years ago, after which she had only rare health checks and used her medications irregularly. She had no neuropsychiatric signs, gait disturbance, or family history for any disease. Her physical examination and neurologic examination were normal.