Majewski's polydactyly syndrome, also known as polydactyly with neonatal chondrodystrophy type I, short rib-polydactyly syndrome type II, and shorts rib-polydactyly syndrome, is a lethal form of neonatal dwarfism characterized by osteochondrodysplasia with a narrow thorax, polysyndactyly, disproportionately short tibiae, thorax dysplasia, hypoplastic lungs and respiratory insufficiency. Wikipedia