Cavernous Sinus Syndrome

Cavernous Sinus Syndrome
Contents of the Cavernous Sinus
Identifiers
ICD-9	437.6
ICD-10	I67.7
Outside Resources
EyeWiki	Cavernous Sinus Syndrome
Radiopaedia	Cavernous Sinus Syndrome

Diagnosis

Differential Diagnosis

While the cause of cavernous sinus syndrome can vary, its presentation is similar to two other diagnoses to consider:

• Orbital Apex Syndrome
• Superior Orbital Fissure Syndrome

This table helps outline the differences in cranial nerve involvement in these three diagnoses.

Cranial Nerve Involvement in Diseases Near the Orbital Apex

Syndrome	CN II	CN III	CN IV	CN V-1	CN V-2	CN VI	Sympathetics
Orbital Apex Syndrome	✔	✔	✔	±		✔
Superior Orbital Fissure Syndrome		✔	✔	✔		✔
Cavernous Sinus Syndrome		✔	✔	✔	✔		✔