The first reported presentation of rickets with metabolic seizures.

A 5-month-old Afro-Caribbean infant presented to the accident and emergency department in December 2000 following a tonic-clonic seizure that lasted 5 minutes. He had been born by normal vaginal delivery and remained fully breast-fed. He had no past medical history of note and in particular no previous history of fits or abnormal movements. There was no family history of epilepsy.