Sacro-coccygeal agenesis.
D000015:Abnormalities, Multiple; D000013:Congenital Abnormalities; D006801:Humans; D009421:Nervous System Malformations; D012445:Sacrococcygeal Region / Q000002:abnormalities*; D012447:Sacrum / Q000002:abnormalities*; D013118:Spinal Cord Diseases; D013577:Syndrome
ABNORMALITIES; SACROCOCCYGEAL REGION/abnormalities; SACRUM/abnormalities