PARAPHARYNGEAL HYDATID CYST:REPORT OF A CASE

An 11-year-old male patient was referred to us with a right upper neck mass of 4 months’ duration. Ultrasonography, computed tomography (CT) scan and magnetic resonance imaging (MRI) showed a cystic lesion in the right parapharyngeal space. Aspiration of the cyst did not show any evidence of hydatid cyst or protoscolex. Serum immunoelectorophoresis was also negative for hydatid cyst. When surgery was performed, the histopathologic report was consistent with a hydatid cyst and serum immunoelectorophoresis for hydatid cyst became positive.