[Sporadic hemiplegic migraine in a 14-year-old boy--a case report].

Hemiplegic migraine is a specific form of migraine with aura including hemiparesis. It is a rare condition of unclear aetiology. The authors present a case of a 14-year-old boy with persistent foramen ovale, suffering from sporadic hemiplegic migraine. The authors broadly describe the symptoms and types of hemiplegic migraine as well as underlining diagnostic and therapeutic difficulties of the attacks. The patient suffered from recurrent severe headaches, vomiting and co-existing focal neurological symptoms, including alternant hemiparesis. On the basis of the history, thorough clinical observation and numerous accessory investigations a diagnosis of sporadic hemiplegic migraine was established. However, the last attack, with prolonged neurological deficits, was treated as a complication of migraine and defined as persistent aura without infarction. The authors also broadly discuss a differential diagnosis, including other stroke-like incidents, vascular diseases, immunological and mitochondrial disorders that mimic the symptoms and clinical course of sporadic hemiplegic migraine.