A female newborn was found to have a rachiopagus parasite consisting of hypoplastic lower limbs attached to the dorsal thoracolumbar region; at surgery, when the infant was 30 days old, the autosite spinal cord was found to have herniated through a spina bifida into the parasite. A female newborn was found to have a rachiopagus parasite consisting of hypoplastic lower limbs attached to the dorsal thoracolumbar region; at surgery, when the infant was 30 days old, the autosite spinal cord was found to have herniated through a spina bifida into the parasite.