[References for prenatal diagnosis of morphological defects including the central nervous system].

Clinical and autopsy records of 209 stillborn and 81 miscarried infants with 484 congenital defects of the central nervous system were analysed. Sets of more than one defect were retrospectively classified by pathogenetic criteria as syndrome, sequence, association and midline defects. Pathogenetic thinking makes the prenatal diagnosis of further defects easier if one has already been diagnosed. Statements regarding the most probable localisation of neural tube defects have been made.