Oral-facial-digital syndrome, type 4 is characterized by lingual hamartoma, postaxial polysyndactyly of hands and feet, and mesomelic shortening of the legs with supinate equinovarus feet. The disease is Orphanet rare-disease nomenclature id Orphanet_2753 (Orofaciodigital syndrome type 4). Also known as: Baraitser-Burn syndrome, OFD4, Oral-facial-digital syndrome type 4.