Primary Cerebral Hydatid Cyst: A rare case of parasitic brain disease from non- endemic zone

Primary Cerebral hydatid cyst (CHD) is absolutely rare phenomenon in Echinococcus infection. Even in the endemic zone CHD is consist of 2% of all intra-cranial space occupying lesions (SOL). We are describing a 7-y-boy from non-endemic area with Primary CHD having no extra cranial echinococcosis presenting right sided hemiparesis, partial seizure and bilateral papilloedema. Computed tomography (CT) of brain showed a large cyst in left hemisphere, characteristics of the lesion suggested hydatid cyst. Neurosurgical intervention was taken to deliver the cyst intact and antihelminthic medication advocated. Symptoms were improved shortly and after two years follow -up no recurrence was found. In conclusion, neurological deficit with typical cystic SOL of brain should have considered a hydatid cyst even in non-endemic zone because neurosurgical management and pharmacotherapy may have been life-saving and cure for the SOL.