caudal regression syndrome (caudal dysplasia sequence) is a rare congenital malformation. it has a spectrum ranging from simple anal atresia to the absence of sacral, lumbar and possibly lower thoracic vertebrae and the most severe form called sirenomelia (mermaid syndrome). sirenomelia has a sole characteristic, which is the limbs fusion, with multiple internal structural abnormalities particu...

Caudal regression syndrome (CRS) is a rare neural tube defect affecting terminal spinal segments and cord manifesting as neurological deficit ranging from bladder and bowel involvement to severe sensory motor deficits in lower limbs. It has sporadic appearance and maternal diabetes, genetic factors, teratogens and hypoperfusion are considered as possible etiologic factors and it can be associat...

INTRODUCTION The regression caudal syndrome includes a spectrum of malformations which vary from the symptomless coccygeal agenesis until thoracic vertebrae and sacrococcygeal agenesis with severe neurological deficit; it is associated sometimes with malformations in other organs and systems. We present a case of partial agenesis of sacro and coccix with neuromuscular, sphincter and orthopedist...