Question
Identify the condition of the given image:
A. Acquired cholesteatoma
B. Congenital cholesteatoma
C. Rupture of tympanic membrane
D. Keratosis obturans
Show Answer
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Correct Answer » D
Explanation
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Answer. D. Keratosis obturans
Given image is Keratosis obturans, otoscope view.
- This is a rare condition of the ear canal with a generalised failure of migration of the normal canal skin.
- The skin accumulates and the underlying bone is resorbed.
- Here there is a deep widening of the ear canal with exposure of the circular annulus at the edge of the tympanic membrane (eardrum, centre).
- The jugular vein (purple) can be seen through the remaining tissue on the floor of the ear canal.
- The eardrum is relatively unaffected here.
