Mullerian derivatives-lymphangiectasia-polydactyly syndrome is characterized by prenatal linear growth deficiency, hypertrophied alveolar ridges, redundant nuchal skin, postaxial polydactyly and cryptorchidism. Mullerian duct remnants, lymphangiectasis, and renal anomalies are also present. Three cases have been described. A small penis was observed in two of these cases. The syndrome is likely to be an autosomal recessive or X-linked trait. All the reported patients died neonatally of hepatic failure.