CT findings of hydatid cyst with unusual location: infratemporal fossa

Hydatid disease has a high incidence in the countries of the temperate zone s such as Turkey. Only few cases in the head and neck region have been repo rted in the literature. Our case, an unusual localization of hydatidosis, i .e. hydatid disease of the infratemporal fossa of a 9-year-old male patient suffering from a swelling of the left maxillary region which was diagnosed by CT, is presented. The lesion visualized on CT images was compressing th e neighbouring structures. The possible diagnosis was made based on the ima ges obtained from CT examination.