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PGCEE MDS 2022: CSF rhinorrhea is due to:

 # CSF rhinorrhea is due to:
A. Nasal fracture
B. Guerin’s fracture
C. Dural tear
D. Condylar fracture


The correct answer is C. Dural tear.

CSF rhinorrhoea is the result of a dural tear associated with a fracture of the cribriform plate of the ethmoid in Lefort II and III fractures. Cerebrospinal Otorrhoea is due to a fracture of the petrous part of the temporal bone.

CSF mixed with blood produces a double ring (Tramline effect) if dropped on a hospital sheet or pillow.

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