*     Polish Mother’s Memorial Hospital, Department of Genetics, 281/289 Rzgowska St. 93-338 Lodz, Poland; Ph: 48 42 271 11 83;
**    Polish Mother’s Memorial Hospital, Department of Maternal-Fetal Medicine;
***   Mother and Child Institute, Department of Diagnostic Imaging, Warsaw, Poland.

We present some images and videos of a second trimester fetus with sacral agenesis. 34 year-old obese patient presented at 23+5 weeks of gestation. Scanning revealed fetus of 22+5 weeks size with sacral agenesis. Subsequently MRI confirmed the findings. The patient was not diabetic (negative OGTT and HbA1c). One little myoma is still visible.

Images 1 and 2: 24th week of pregnancy. Longitudinal scans of the sacral region of the fetus showing missing caudal part - sacral agenesis.

Images 3 and 4: 24th week of pregnancy. Longitudinal scans of the sacral region of the fetus showing missing caudal part - sacral agenesis (image 3); and oblique scan showing part of fetal iliac wing and small uterine myoma (image 4).

Images 5 and 6: 24th week of pregnancy. Transverse scans showing abnormal iliac wings of the fetus.

Images 7 and 8: 24th week of pregnancy. MRI images showing sacral agenesis of the fetus.

Videos 1 and 2: 24th week of pregnancy. Longitudinal scans of the sacral region of the fetus showing missing caudal part - sacral agenesis (video 1); and abnormal iliac wings of the fetus (video 2).