A case of bilateral sensorineural hearing loss from Langerhans cell histiocytosis.

Langerhans cell histiocytosis is a rare disorder, with resultant bilateral sensorineural hearing loss unreported in adults. A 42-year-old man presented with 4 months of right-sided tinnitus and hearing loss treated initially as otitis media with effusion. He re-presented 5 months later with progressive bilateral hearing loss--sensorineural (>100 dB) on pure tone audiogram.