Superior Semicircular Canal Dehiscence, also known as third mobile window syndrome, is related to otosclerosis and vertigo, benign recurrent, and has symptoms including abdominal pain, angina pectoris and chest pain. An important gene associated with Superior Semicircular Canal Dehiscence is POU3F4 (POU Class 3 Homeobox 4), and among its related pathways/superpathways is Sensory processing of sound. The drugs Fentanyl and Proguanil have been mentioned in the context of this disorder. Affiliated tissues include bone and bone marrow, and related phenotypes are nervous system and hearing/vestibular/ear