*    Department of Gynecology, Félix Guyon’Hospital, 97400 Saint-Denis, Ile de la Réunion, France;
**   Sonographer, Moufia’s street, 97400 Saint-Denis, Ile de la Réunion, France.

Case report

This is a case of the iniencephaly and acrania noticed at 13 weeks of pregnancy. Several anomalies could be seen: absence of the skull, with a posterior cystic lesion (Image 3) representing acrania; cervicothoracic rachischisis (Images 1, 2); marked angulation of the spine (image 2), retroflexed head (Image 3A). The parents opted for the interruption of the pregnancy. The final diagnosis was acrania and acrania with probable iniencephaly.

Images 1, 2: 13 weeks of pregnancy. Oblique coronal scans showing rachischisis of the cervicothoracic spine.

Images 3, 4: Transverse scans of the fetal head showing acrania (better visible on the image 3).

Images 7, 8: 3D image showing the iniencephalic fetus with the head kept in the retroflexed position.