Hypoparathyroidism, intracranial calcification, and seizures 61 years after thyroid surgery.

Though hypocalcemic symptoms from hypoparathyroidism following thyroidectomy most often occur in the immediate postoperative period, hypoparathyroidism can present itself many years after the thyroid surgery with nonspecific symptoms. We present herein the case of a 74-year-old woman with previously undiagnosed hypoparathyroidism who had tonic-clonic seizures and intracranial calcification 61 years after her thyroidectomy. This case is unusual because of the long latency between thyroidectomy and clinical presentation.