Presentation
Child with a midline lower thoracic - upper lumbar spinal defect. MRI for further investigation.
Patient Data
Age: 11 months
Gender: Male
From the case:
Chiari II malformation
![](https://prod-images-static.radiopaedia.org/images/8310425/7e770e1d2cb288b572aa3f1c9e0f9c_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/8310457/d1084e67061a2a3d1088dfedfdf80a_thumb.jpg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/8310466/b9ecfee74d76a9003426f0a822c623b10efde88ddd8cfdaff2890921a66828cd_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/8310482/f856faeaad193ce5dc711884cd137ee6cf454ed63a29e6095afbdec4346c66a6_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
![](https://prod-images-static.radiopaedia.org/images/8310399/70475cad00702e96cf8083f587173ca52dc8b5f4e722f380580cbc38d5a0d1a4_thumb.jpeg)
![This study is a stack](/packs/stack-YQKLCKBI.gif)
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Info
![](https://prod-images-static.radiopaedia.org/images/8310425/7e770e1d2cb288b572aa3f1c9e0f9c_big_gallery.jpg)
Brain:
tonsillar herniation, 15mm below foramen magnum
small posterior fossa
hydrocephalus: extensive
absent corpus callosum
Spine:
large thoracolumbar cystic mass with cord and nerve root within it (myelomeningocele)
syringomyelia in mid-thoracic cord
no tethered cord
Case Discussion
The findings are consistent with Chiari II malformation.