[Sympodia--the caudal regression syndrome].

Description of a rare case of sympodia in a female newborn, first child of a seventeen year old mother. In addition to typical external deformities with malformations of the bones of the lower extremities, malformations of ribs and the vertebral column, there was also an agenesis of kidneys, ureters, bladder and urethra. The colon ended blindly in the pelvis minor, the anus was imperforate. There was a genital tubercle without urogenital opening.