Radiation-induced cavernous malformation arising within vestibular schwannoma manifesting as subarachnoid hemorrhage: Case report and literature review.

Six days later, she was admitted with an acute severe headache, trigeminal neuropathy, complete abducens palsy, complete facial palsy, and deafness.

Computed tomography and magnetic resonance imaging revealed subarachnoid hemorrhage as well as an intratumoral hematoma.

Three weeks after the hemorrhage, the tumor was gross totally removed to reduce the mass effect and prevent recurrent hemorrhage.

However, her symptoms persisted after discharge.