Case of the Week #531

Oueslati Boujemaa

February 23rd, 2021 - March 5th, 2021

Dr. Oueslati Boujemaa1

1.Prenatal diagnosis center "Belveder", Tunis

Email: oueslati@gnet.tn

Case Description

We incidentally identified this finding while imaging a patient at 23 weeks gestation. Her past medical and family history was noncontributory. What is the diagnosis?

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Answer

Our ultrasound examination found a midline soft mass behind the cervical spine, with an anechoic center. There was no obvious cleft. The fetal brain was normal, without Arnold Chiari syndrome nor hydrocephaly. The prenatal MRI additionally found a "tethered" cord around C3-C4 levels.

Our hypothesis was a cervical meningocele with filiform connection, without any significant consequence on the spinal cord or the brain. A similar case was described by Dr Cuillier [1]. We followed the pregnancy and the baby was delivered normally.

The diagnosis was confirmed at surgery: cervical meningocele, without significant spinal cord involvement except for a few rootlets. There were no complications on follow-up after surgical excision.

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References:

[1] Cuillier, Fabrice et al. "Meningocele, Cervical Filiform" TheFetus.net. https://sonoworld.com/TheFetus/page.aspx?id=3132, Publish date 2/2012.

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