Caudal regression syndrome.

A case of caudal regression syndrome was reported in 20 wks foetus during routine foetal autopsy at GMCH, Chandigarh. The external examination showed 2 vessels in umbilicus. There was anteroposterior lengthening of skull. The anal opening was absent. The lower limbs were fused in thigh region with a small appendages attached to this on left side which also terminated in foot. The right foot had 5 toes and left foot had 3 toes. No external genitalia were seen. On internal examination, the gut was opening in a dilated cloaca like blind chamber. Kidneys were absent on both sides.X ray examination revealed small sacrum, femur, tibia in both the legs. Fibula was absent bilaterally. Caudal dysgenesis syndrome and caudal regression syndrome are broad terms that refer to a constellation of caudal congenital anomalies affecting caudal spine and spinal cord, hind gut, urogenital system, and the lower limbs. The etiology, incidence, causative factors of this case will be discussed in light of available literature.