Bilateral cerebrospinal fluid rhinorrhoea

Cerebrospinal fluid (CSF) rhinorrhoea is leakage of fluid from the subarach noid space to the frontal, sphenoidal or ethmoidal sinuses, and may occur s pontaneously. The authors present the first reported case of bilateral spon taneous CSF rhinorrhoea. Bony defects on both sides of the cribriform plate were identified using endoscopic and radiological techniques, and the CSF fistula was closed endoscopically. The aetiology, diagnosis and contemporar y surgical treatment of spontaneous CSF leaks is discussed. Endoscopic repa ir was successful in this case, and in view of the high success and low rep orted complication rates this surgical approach should be considered for tr eatment of spontaneous CSF rhinorrhoea.