Recurrent meningitis in an otherwise healthy child should raise suspicion for cerebrospinal fluid (CSF) fistula. Children with congenital hearing loss and meningitis often have malformations of the inner ear.1 The most common cochlear malformations are cochlear hypoplasia (36%), incomplete partition (31%), and common cavity (13%).2
Ruhl DS, Koehn HA, Mahaney KB, Kesser BW. Congenital Fistulae of the Stapedial Footplate and Round Window Membrane: An Unusual Cause of Recurrent Meningitis. JAMA Otolaryngol Head Neck Surg. 2018;144(1):89–90. doi:10.1001/jamaoto.2017.2033
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