A 34-Year-Old Woman Is Evaluated for Several Months of Moderate

A 34-year-old woman is evaluated for several months of moderate hearing loss.  She has also noticed a ringing in her left ear.  The patient has had no recent ear infections or cold symptoms, does not use cotton ear swabs, and has no history of head trauma.  Her father has bilateral hearing loss attributed to old age.  On physical examination, the auditory canals are patent and tympanic membranes appear gray with a well-visualized light reflex.  Hearing is diminished on the left side.  Neurologic examination shows left-sided facial numbness, an asymmetric smile, and diminished corneal reflex response in the left eye.  This patient's condition suggests an intracranial mass in which of the following locations?

A) Above the sellar diaphragm
B) Adjacent to the sagittal sinus
C) Between the cerebellum and lateral pons
D) In the dorsal midbrain
E) Over the lateral cerebral convexity

Correct Answer:

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