Short-Rib Thoracic Dysplasia 3 with or Without Polydactyly, also known as asphyxiating thoracic dystrophy 3, is related to orofaciodigital syndrome iv and short-rib thoracic dysplasia 6 with or without polydactyly. An important gene associated with Short-Rib Thoracic Dysplasia 3 with or Without Polydactyly is DYNC2H1 (Dynein Cytoplasmic 2 Heavy Chain 1), and among its related pathways/superpathways are Organelle biogenesis and maintenance and Signaling by Hedgehog. Affiliated tissues include pancreas and heart, and related phenotypes are agenesis of corpus callosum and cleft palate