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Old 09-28-2012
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Arrow Belindalimm Daily Questions: Anatomy #3

A 35-year-old woman accompanied by her husband comes to the family doctor concerning about the hearing problems. She recently finds that she can barely hear TV unless she turns on really high volume. Her husband also tells you he has to adjust to a higher volume when talking to his wife. When performing hearing test, you find the patient is with difficulty telling the direction from which the sound is coming. What is the most likely location of the lesion causing the hearing loss problems?

A. Left tympanic membrane
B. Obstruction in the right external ear
C. Lateral lemnisicus in midbrain
D. Cochlear hair cell in right inner ear
E. Left dorsal cochlear nuclei at the prontomedullary junction
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Old 09-28-2012
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will go with C) lateral meniscus in midbrain.......by seeing her difficulty not localised to a particular ear
hyperacussis???
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Old 09-29-2012
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Yup, C. Anything from the peripheral pathway till the cochlear nucleus will result in unilateral deafness of the affected ear. But from the superior olivary nucleus and up, it will result in failure to localize the sound, and the patient will hear better in the affected side.
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Old 10-01-2012
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Default Yes, the answer is C

Quote:
Originally Posted by dockhi View Post
Yup, C. Anything from the peripheral pathway till the cochlear nucleus will result in unilateral deafness of the affected ear. But from the superior olivary nucleus and up, it will result in failure to localize the sound, and the patient will hear better in the affected side.
Thank you dockhi for your explanation!
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