Department of Gynecology, Félix Guyon Hospital, 97400 Saint-Denis, Ile de la Réunion, France.

Case report

A 32-year-old woman (G4P3) with non-contributive history presented to our unit ate 26 weeks of pregnancy. Her first ultrasound performed at 13 weeks was reported to be normal (nuchal translucency 1 mm - CRL 60 mm). Triple test also came out with normal results.

Our ultrasonographic examination revealed female fetus with isolated cystic sacrococcygeal teratoma. Distal spine looked normal. The size of the tumor stayed unchanged the rest of the pregnancy.The newborn was delivered via cesarean section at in term. Surgical removal of the teratoma was done five days later with normal postoperative course.

Images 1, 2, 3: 26 weeks of pregnancy; the images show sagittal (Image 1) and coronal (Images 2, 3) scans of the fetal caudal spine with the mass of the cystic sacrococcygeal teratoma.

Video 1: 26 weeks of pregnancy; the video shows caudal spine of the fetus with the mass of the cystic sacrococcygeal teratoma.

Image 4: 26 weeks of pregnancy; 3D image of the fetal caudal spine with the mass of the sacrococcygeal teratoma (arrows).