Neurologic implications of glomus tumors in the head and neck

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Abstract
Seventy-six patients with glomus tumors were evaluated. The incidence of cranial nerve paralysis is 37 percent and the incidence of intracranial extension is 14.6 percent. Jugular foramen syndrome is associated with 50 percent, and hypoglossal nerve involvement with 75 percent incidence of posterior fossa extension. Horner's syndrome is associated with 50 percent of middle cranial fossa invasion. The incidence of CNS tumor involvement with cranial nerve paralysis (not including VIIth nerve) is 52 percent.