Short-Rib Thoracic Dysplasia 20 with Polydactyly, also known as srtd20, is related to juvenile nephronophthisis and nephronophthisis. An important gene associated with Short-Rib Thoracic Dysplasia 20 with Polydactyly is INTU (Inturned Planar Cell Polarity Protein). Affiliated tissues include pancreas and liver, and related phenotypes are short neck and micrognathia