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ENT · Ear and audiology: hemotympanum
Sample itemAfter a fall on his head, a man has a dark blue bulging tympanic membrane with conductive hearing loss. The drum is intact and there is no discharge or facial weakness. What is the most appropriate initial approach?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Observation, as the blood usually resolves spontaneously
Blood in the middle ear after a head injury (hemotympanum) is a sign of a skull base injury and usually absorbs over weeks, with conductive loss recovering. Active surgery is not needed unless ossicular discontinuity, CSF leak or facial palsy appears. Follow with audiometry.
Option by option
A. Observation, as the blood usually resolves spontaneously (correct)
Correct. Hemotympanum without discharge, leak or palsy is observed, and audiometry is repeated after resolution.
B. Tympanoplasty to rebuild the drum
Tympanoplasty repairs a perforation or ossicular defect, and the drum here is intact.
C. Early cortical mastoidectomy
Mastoidectomy treats coalescent mastoiditis or cholesteatoma, not post-traumatic blood.
D. Immediate myringotomy with grommet insertion
Myringotomy is not needed and risks introducing infection into a blood-filled middle ear.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
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