title: Sacral agenesis.
mesh_terms: D000015:Abnormalities, Multiple; D002648:Child; D002675:Child, Preschool; D003025:Clubfoot; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012447:Sacrum / Q000002:abnormalities*; D013126:Spinal Nerve Roots / Q000002:abnormalities; D014034:Toes / Q000002:abnormalities