| An extremely rare type of short rib polydactyly syndrome with neonatal onset. The disease has characteristics of polydactyly, hydropic appearance, and small thorax with short horizontal ribs causing fatal cardiorespiratory distress. Affected patients also have extreme micromelia (flipper-like extremities), pointed metaphyses and a range of other ossification defects. Extraskeletal manifestations may include polycystic kidneys, transposition of the great vessels and atresia of the gastrointestinal and genitourinary systems. |