Anterior Segment Dysgenesis 4, also known as iridogoniodysgenesis syndrome, is related to anterior segment dysgenesis 3 and interstitial granulomatous dermatitis with arthritis. An important gene associated with Anterior Segment Dysgenesis 4 is PITX2 (Paired Like Homeodomain 2), and among its related pathways/superpathways are Metabolism of proteins and Post-translational modification: synthesis of GPI-anchored proteins. Affiliated tissues include eye and bone marrow, and related phenotypes are abnormality of the dentition and glaucoma