Analysis of Caudal Regression Syndrome: A Case Report From Bulgaria.

A rare congenital condition known as caudal regression syndrome (CRS) or caudal dysplasia sequence (CDS) is defined by deformity of the caudal (lower) half of the body, which can have different effects on skeletal, neurological, gastrointestinal, and genitourinary systems. A 19-year-old G1P0 woman presented for a fetal anomaly scan at 27+6 weeks of gestation due to suspected oligohydramnios. The patient reported a history of maternal diabetes type 1 on insulin for the past 10 years.