Fourth Cranial Nerve Palsy, also known as fourth nerve palsy, is related to hypertropia and duane retraction syndrome. An important gene associated with Fourth Cranial Nerve Palsy is TUBB2B (Tubulin Beta 2B Class IIb), and among its related pathways/superpathways are PAK Pathway and Antiviral mechanism by IFN-stimulated genes. Affiliated tissues include eye and pituitary, and related phenotype is respiratory system.