RESUMEN
Hydatid disease, caused by the Echinococcus parasite, is a worldwide zoonosis produced by the larval stage of the tapeworm. In urban living patients with cerebral abscesses, hydatid cysts should not be excluded from the differential diagnosis. We report an exceptional primary cerebral hydatid cyst in which imaging showed a large, round, contrast-enhancing lesion with a mass effect. The patient presented with a dull headache for over a year and progressively worsened left hemiparesis. The magnetic resonance imaging showed a huge intracranial mass, and the pathology was corrected with cyst hydatid. Surgery was performed via Dowling's technique, and the patient recovered without neurologic deficits. Echinococcosis should be considered a differential diagnosis for single or multiple cerebral abscesses, even in the absence of liver infections. The history of living in rural areas does not exclude cerebral hydatid cysts and Echinococcus .
