Villaret Syndrome

Villaret Syndrome
Other Names	Retroparotid space syndrome
Identifiers
ICD-9	352.6
ICD-10	G52.7

Overview

Villaret syndrome, sometimes described as retroparotid space syndrome, is a collection of ipsilateral cranial nerve palsies (IX, X, XI, and XII) as well as Horner's syndrome.

History

Villaret syndrome is named after a French neurologist named Maurice Villaret, who first described the syndrome in 1916.

Diagnosis

Differential Diagnosis

There are several named syndromes differentiating the various cranial nerve deficits that can result from skull base masses and lesions. These should be considered based on cranial nerve involvement.

• Vernet Syndrome
• Collet-Sicard Syndrome
• Tapia Syndrome
• Jackson Syndrome
• Schmidt Syndrome

These syndromes and their respective cranial nerve involvement are outlined in the table below.

Cranial Nerve Involvement in Skull Base Masses

Syndrome	CN IX	CN X	CN XI	CN XII	Sympathetics
Vernet Syndrome	✔	✔	✔
Collet-Sicard Syndrome	✔	✔	✔	✔
Villaret Syndrome	✔	✔	✔	✔	✔
Tapia Syndrome		✔	±	✔	±
Jackson Syndrome		✔	✔	✔
Schmidt Syndrome		✔	✔