See also
caudal regression syndrome
spinal malformations (fetal spinal anomalies)
sacral agenesis
lumbar agenesis
lumbosacral agenesis
References
Mihmanli I, Kurugoglu S, Kantarci F, Kanberoglu K. Dorsolumbosacral agenesis. Pediatr Radiol. 2001 Apr;31(4):286-8. PMID: 11321749