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Updated: Jun 15, 2026

Intrathecal Application of a Fluorescent Dye for the Identification of Cerebrospinal Fluid Leaks in Cochlear Malformation
Published on: February 29, 2020
Cerebrospinal fluid leak with recurrent meningitis following tonsillectomy
Shawn L Hervey-Jumper1, Ahmer K Ghori, Douglas J Quint
1Department of Neurosurgery, University of Michigan, Ann Arbor, Michigan 48109-5338, USA.
Abstract:
The authors report an unusual case of bilateral large petrous apex cephaloceles in a 14-year-old boy with a history of recurrent meningitis. Although these lesions are rare and usually asymptomatic, surgical correction is recommended if they are associated with a persistent CSF leak. In this patient, the extensive bilateral cranial defects were not adequately treated by an intracranial approach alone. Repair of a defect in the posterior pharyngeal wall, the site of a prior tonsillectomy, ultimately resulted in repair of the CSF fistula.
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