In halo sign seen in csf rhinorrhea:: (A) Blood is encircled with csf., (B) CSF is encircled with blood., (C) Both are mixed no demarcation., (D) None of the above.
Answer is A. CSF rhinorrhea seen in
Lefort 2&3
Naso orbital ethmoid fracture.
Cribiform plate fracture.
Frontal sinus fracture.
Sphenoidal sinus fracture