Sacral agenesis syndrome (Caudal regression syndrome) is a neural tube defect that is characterized by absence of the vertebral segment that constitutes the sacrum. It
is very rarely seen and generally develops sporadically. Its etiology is influenced by maternal diabetes, genetic factors, teratogenic agents and vascular hypo-perfusion.
It is important to make a diagnosis in the prenatal period. This paper presents a newborn diagnosed with sacral agenesis as a case and discusses this disease in the
light of the latest literature information.