The most common site of the leak in CSF rhinorrhea is: (A) Sphenoid sinus, (B) Frontal sinus, (C) Cribriform plate, (D) Tegmen tympani
Answer is C. CSF rhinorrhea- Commonest site- Lateral lamella of cribriform plate of the ethmoidOther sites- Roof of ethmoids, posterior wall of the frontal sinus, Sphenoid sinusThe commonest cause of CSF rhinorrhoea- Iatrogenic TraumaRef: Hazarika; 3rd ed; Pg 361