====== Villaret’s syndrome ======

AKA posterior retropharyngeal syndrome, AKA the nervous syndrome of the posterior retroparotid
space). Collet-Sicard syndrome with sympathetic involvement. Usually due to retropharyngeal
leasions.

Etiologies include: parotid tumors, metastases, external carotid aneurysm and [[skull base osteomyelitis]].

Symptoms: as with Collet-Sicard + Horner syndrome.