Isolated monolateral neurosensory hearing loss as a rare sign of neuroborreliosis.
http://www.ncbi.nlm.nih.gov/pubmed/15060815?dopt=Abstract

A Unique Case of Adolescent Neuroborreliosis Presenting with Multiple Cranial Neuritis and Cochlear Inflammation on Magnetic Resonance Imaging
http://www.pedneur.com/article/S0887-8994%2814%2900607-9/abstract