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Articles » Central nervous system » Spine » Diastematomyelia
2016-07-10  Diastematomyelia associated with open spina bifida and hemivertebra  © Lusine Karapetyan

Diastematomyelia associated with open spina bifida and hemivertebra

Case report

28 year-old (G1P0) was referred to our unit for routine first trimester anomaly scan at 13 weeks 4 days of pregnancy. Our scanning revealed the following anomalies.
The parents opted for interruption of the pregnancy.

Images 1-6, videos 1 and 2: 2D images of the fetal head show cranial anatomy dilated lateral ventricles, slightly dilated  third ventricle and all cranial signs of the open spina bifida   - large brainstem (BS), non-visible intracranial translucency, large BS/BSOB ratio (brainstem to occipital bone distance) -, the classic banana sign and small frontomaxillary facial angle , which is characteristic for the first trimester fetuses with open spina bifida.


Images 7-14, videos 3-5: 2D and 3D images in different planes show a bony spur in the lower lumbar region, protruding out from the soft tissues and widening of the spinal canal in the coronal view , which is typical for the diastematomyelia and spina bifida. Image 14 and video 4 show hemivertebra.



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