A 34-year-old man visits the clinic after experiencing chronic buzzing in his right ear for the previous 6 months. In addition, the patient's hearing on the right side is impaired. He hasn't experienced a fever, earache, a runny nose, a sore throat, or a cough. The patient has not been exposed to loud noises or used cotton swabs. He tried over-the-counter oral pseudoephedrine, but it had little effect on his symptoms. There is no sinus discomfort on physical examination, and the mucous membranes are moist without erythema or exudate. Otoscopic examination reveals bilaterally normal external auditory canals with pinkish-grey tympanic membranes. An intracranial tumor is discovered during a brain MRI. Which of the following structures is most likely to have caused this patient's lesion?

Question

Quizplus · Accepted Answer

Eductional Objective: Acoustic neuromas are Schwann cell-derived tumors that most usually emerge from the vestibular component of the vestibulocochlear nerve and are found at the cerebellopontine angle (between the cerebellum and lateral pons). Tinnitus and unilateral sensorineural hearing loss are common symptoms.

A 34-Year-Old Man Visits the Clinic After Experiencing Chronic Buzzing