Deafness, Autosomal Recessive 42, also known as dfnb42, is related to deafness, autosomal recessive 21 and nonsyndromic hearing loss. An important gene associated with Deafness, Autosomal Recessive 42 is ILDR1 (Immunoglobulin Like Domain Containing Receptor 1), and among its related pathways/superpathways are Sensory processing of sound and Epithelial to mesenchymal transition in colorectal cancer. Affiliated tissues include brain, and related phenotypes are nervous system and hearing/vestibular/ear