External frontal sinusotomy and endoscopic repair of cerebrospinal fluid fistula in the posterior wall: preliminary report of a new technique

Cerebrospinal fluid rhinorrhoea is the abnormal leakage of cerebrospinal fluid into the nasal cavity. The posterior wall of the frontal sinus can be the site of such leakage. Traditionally, these leaks were repaired via external osteoplastic or neurosurgical approaches. Despite advances in instrumen...

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