MRI Cervical and Thoracic spine
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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 localised 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 localised syrinx at C7.