A 30-year-old man is evaluated in the office due to tinnitus for the last month. He complains of diminished hearing in his right ear. He did not have any recent trauma or ear infection. Otoscopic examination is normal. The hearing function is decreased on the right side. Physical examination shows facial muscles weakness on the right side, diminished sensation, and absent corneal reflex. The patient's presentation is suggested by a tumor found in which of the following locations?

Question

Quizplus · Accepted Answer

Eductional Objective: The vestibular schwannomas are tumors that originate from the vestibulocochlear nerve at the cerebellopontine angle. Due to its location, the tumor might present with unsteadiness, hearing loss, tinnitus, ipsilateral facial sensory loss, impaired corneal reflex, and ipsilateral facial muscles weakness. These symptoms result from the compression of the vestibulocochlear nerve, the trigeminal nerve, and the facial nerve. Neurofibromatosis type might cause bilateral vestibular schwannoma.

A 30-Year-Old Man Is Evaluated in the Office Due to Tinnitus