Complex sentence: Robinow syndrome is an extremely rare genetic disorder characterized by short-limbed dwarfism, abnormalities in the head, face, and external genitalia, as well as vertebral segmentation.
Split into simpler sentences: Robinow syndrome is an extremely rare genetic disorder. It is characterized by short-limbed dwarfism, abnormalities in the head, face, and external genitalia, as well as vertebral segmentation.