FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
JUNE 2017

POSSESSION USE OF CELL PHONES OR ANY SUCH ELECTRONIC GADGETS IS NOT PERMITTED INSIDE THE
EXAMINATION HALL.
OTORHINOLARYNGOLOGY
PAPER I
ENT/J/17/28/I
Time 3 hours
Max. Marks 100
Important instructions:
• Attempt all questions in order.
• Each question carries 10 marks.
• Read the question carefully and answer to the point neatly and legibly.
• Do not leave any blank pages between two answers.
• Indicate the question number correctly for the answer in the margin space.
• Answer all the parts of a single question together.
• Start the answer to a question on a fresh page or leave adequate space between two answers.
• Draw table/diagrams/flowcharts wherever appropriate.
Write short notes on:
1. Developmental anatomy of tympanic cavity.
Boundaries of Prussack's space.
What are the various routes through which epitympanic
cholesteatoma extent through this space?

2. Principles of impedence audiometry.
Stapedial reflex pathway.
Clinical applications of impedence audiometry.

3. List various landmarks for identification of facial nerve in parotid
surgery.
How would you monitor facial nerve during parotid surgery?
5+5
4. Draw a labeled diagram of Organ of Corti.
Function of outer hair cells.
Otoacoustic emissions.

5. Enumerate the various extracranial abscesses in relation to
temporal bone.
Clinical features and management of acute mastoiditis.

6. How do you define sensitivity and specificity of a test?
Describe the most sensitive and most specific test in two clinical
conditions in ENT.
5+5
7. What are problems of mastoid cavity?
Indications and material used to obliterate mastoid cavity.
4+6
8. Surgical anatomy of internal auditory canal.
Various surgical approaches to internal auditory canal.
4+6
P.T.O.
FINAL EXAM NATIONAL BOARD OF EXAMINATIONS
JUNE 2017

POSSESSION USE OF CELL PHONES OR ANY SUCH ELECTRONIC GADGETS IS NOT PERMITTED INSIDE THE
EXAMINATION HALL.
OTORHINOLARYNGOLOGY
PAPER I
9. Define tinnitus.
Pathophysiology of tinnitus.
How would you manage such a case?
Tinnitus Retraining Therapy.

10. Using suitable examples/illustrations, describe the following:
Pure tone audiograms
ABLB test
SISI
Tone decay test