Villaret's syndrome due to thrombosis of the jugular vein.

Villaret's syndrome is an extremely uncommon condition in which the four lower cranial nerves and the cervical sympathetic are selectively affected. Most cases described thus far have been attributed to either trauma or space-occupying lesions in the posterior retroparotid space. This report demonstrates a first case of "pure" Villaret's syndrome caused by jugular vein thrombosis secondary to previous mastoiditis.