Hydatid cyst of the neck.

Hydatid disease located in the head and neck is uncommon, and hydatid cysts rarely present as a cervical mass. We report an unusual case of primary hydatid cyst arising in the soft tissues of the neck. The clinical presentation was non-specific. The diagnosis was suspected by the radiological findings, and confirmed by histopathology. Characteristics of this rare disease, its diagnostic difficulties, and treatment are discussed.