Hyperostosis Cranialis Interna, also known as hcin, is related to hyperostosis and osteosclerosis. An important gene associated with Hyperostosis Cranialis Interna is SLC39A14 (Solute Carrier Family 39 Member 14), and among its related pathways/superpathways are Extracellular matrix organization and Canonical and non-canonical TGF-B signaling. Affiliated tissues include bone and tongue, and related phenotypes are sensorineural hearing impairment and proptosis