[A rare cause of hemiparesis: cerebral hydatidosis].

A 6-year-old Turkish boy was brought to the Netherlands by his immigrant father because of hemiparesis. There were no signs of raised intracranial pressure. Cerebral hydatidosis was diagnosed. After surgical removal of the hydatid cyst and postoperative treatment with albendazole the patient recovered. Cerebral hydatidosis is very rare in the Netherlands but should be considered in immigrants from endemic countries.