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Cerebrospinal fluid leaks are rare but remain an important differential diagnosis for patients presenting with persistent, unilateral rhinorrhoea. This case describes a middle-aged female with persistent left sided rhinorrhea. She was minimally responsive to treatment for chronic sinusitis. On re-evaluation, a cerebrospinal fluid leak secondary to a meningoencephalocele was identified. This was subsequently repaired with a pedicled, vascularized graft using an endoscopic endonasal approach. The discussion which follows reviews the management of CSF rhinorrhoea with an emphasis on the available surgical options as well as the materials used for repair.

Endoscopic endonasal repair of a cerebrospinal fluid leak secondary to a meningoencephalocele using a posterior – based middle turbinate flap