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1. A not uncommon congenital defect in which a vertebra is malformed; unless several vertebrae are affected or there is myelomeningocele there are few symptoms; can be diagnosed by amniocentesis
   - spina bifida, schistorrhachis

Type of: birth defect, congenital abnormality, congenital anomaly, congenital defect, congenital disease, congenital disorder

Encyclopedia: Rachischisis