Marden-Walker syndrome (MWS) is a genetic condition affecting the connective tissue. Features may include distinctive facial features, a cleft or high-arched palate, a small or receding jaw (micrognathia), fixed bone joints (contractures or arthrogryposis), and growth delay. Other symptoms may include a mask-like face with a narrowing of the eye opening (blepharophimosis), low-set ears, failure to thrive, and a generalized slowing down of physical reactions, movements, and speech. The cause of MWS is unknown. A few individuals have been found to have a PIEZO2 gene that is not working correctly. It is likely inherited in an autosomal recessive pattern. This condition is diagnosed by a clinical exam and other medical tests.