From the case:
Tympanosquamosal fissure
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Prominent petrotympanic fissure on the right.
From the case:
Tympanosquamosal fissure
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The arrow shows the tympanosquamosal fissure which is the lateral continuation of the petrotympanic fissure.
Case Discussion
Prominent petrotympanic fissure not to be confused with a fracture.
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