Martinez-Frias Syndrome, also known as pancreatic hypoplasia, intestinal atresia, and gallbladder aplasia or hypoplasia, with or without tracheoesophageal fistula, is related to mullerian derivatives, persistence of, with lymphangiectasia and postaxial polydactyly and mitchell-riley syndrome. Affiliated tissues include pancreas, and related phenotypes are intrauterine growth retardation and tracheoesophageal fistula