Schmidt Syndrome

Schmidt Syndrome

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
• Villaret Syndrome
• Tapia Syndrome
• Jackson 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		✔	✔