A positive fistula test during Siegelisation indicates-
Correct Answer: Para-labyrinthitis due to erosion of lateral semicircular canal
Description: Fistula test is done to Assess the Vestibular Function
Basis: In case of fistulous communication between middle ear and labyrinth
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Any pressure change in
External auditory canal (produced by pressing tragus or by siegel’s speculum)
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will stimulate lateral semicircular canal (Ans 11 – Ref Tuli 1/e p. 939)
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Produce nystagmus/vertigo
Category:
ENT
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