File:Chiari 1 - pre and post decompression surgery (Radiopaedia 42945-46189 Axial T2 2).png

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Chiari_1_-_pre_and_post_decompression_surgery_(Radiopaedia_42945-46189_Axial_T2_2).png ‎(512 × 512 pixels, file size: 205 KB, MIME type: image/png)

Summary:

Description
  • Radiopaedia case ID: 42945
  • Image ID: 19570233
  • Image stack position: 2/20
  • Plane projection: Axial
  • Aux modality: T2
  • Study description: MRI Brain and Cervical Spine
  • Study findings: Technique: Multiplanar, multisequence imaging has been obtained through the cervical spine without contrast. Findings: Comparison is made to the previous imaging. Since then a posterior fossa decompression has been performed, with excellent decompression of the craniospinal junction. The cerebellar tonsil has elevated, there is copious CSF both posterior and anterior to the spinal medullary junction, and the areas of pre-syrinx formation at C6/7 has significantly decreased in signal intensity and geographic extent. There remains a mild reversal of the normal cervical lordosis and some degenerative changes with disc bulging at C6/7, C5/6, and C4/5. Cerebral parenchymal signal intensity and architecture are normal. Conclusion: Successful decompression of the posterior fossa, and marked improvement in the "pre-syrinx" appearance in the cervical cord.​
  • Modality: MRI
  • System: Spine
  • Findings: Technique: Multiplanar, multisequence imaging has been obtained through the cervical and thoracic spine. Findings: Cerebellar tonsillar ectopia of 20 mm with marked crowding of structures at the foramen Magnum. There is also ligamentous hypertrophy around the dens. Small disc bulges are seen at C4/5 and C6/7 indenting the ventral CSF space. There is a localized syrinx at the C7 level, measuring 8 mm in length and 2 mm in AP dimension. There is a mild prominence of the central canal above this. Left paracentral disc protrusion at T11/12 which mildly displaces the cord, without cord abnormality. There is also mild left foraminal stenosis at this level. Conclusion: Chiari malformation with localized syrinx at C7.​
Date Published: 27th Feb 2016
Source https://radiopaedia.org/cases/chiari-1-pre-and-post-decompression-surgery
Author Bruno Di Muzio
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

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Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0)

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