[Diastematomyelia diagnosed prenatally].

We report a case of a 32-week-old foetus affected by diastematomyelia. A third trimester echography suggested a spine abnormality. Further investigations by CT-scanner and MRI were performed to precise the anomaly and to better counsel the couple on the prognosis. We performed a review of the literature about embryological hypotheses, clinical presentations, antenatal investigations and prognosis of such a rare spinal malformation.