File:Chiari II malformation (Radiopaedia 87619-104109 Axial T1 11).jpeg

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Chiari_II_malformation_(Radiopaedia_87619-104109_Axial_T1_11).jpeg ‎(512 × 512 pixels, file size: 17 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 87619
  • Image ID: 54598880
  • Image stack position: 11/16
  • Plane projection: Axial
  • Aux modality: T1
  • Study description: Whole spine
  • Study findings: There is a syringohydromyelia in the cervical and upper dorsal spinal cord with expansion of the cervical spinal cord seen. There is a large defect seen in the posterior bony elements of the lumbar spine from L1–L5 with the meninges and CSF protruding through the defect (myelomeningocele). There is evidence of diastematomyelia and tethering of the spinal cord.
  • Modality: MRI
  • System: Spine
  • Findings: Widely separated bodies of the lateral ventricles appear parallel to each other, with dilated trigons, occipital horns (colpocephaly), and temporal horns of the lateral ventricles. Dilated high riding third ventricle consistent with dysgenesis of the corpus callosum. (On the sagittal views only part of the splenium is present) Cavum septum pellucidum and vergae are seen. Chiari II malformation features are depicted by a small posterior fossa with low attachment of the tentorium. Caudally displaced slit-like fourth ventricle and brain stem, as well tonsillar herniation through an enlarged foramen magnum. The tectum is beaked and hydrocephalus is present. Cervico-medullary kink is also noted. Batwing configuration of the frontal horns pointing inferiorly on coronal view secondary to enlarged caudate nucleus bilaterally. No shift of midline structures or signs of space-occupying mass lesions could be seen.
Date Published: 13th Mar 2021
Source https://radiopaedia.org/cases/chiari-ii-malformation-15
Author Naim Qaqish
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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current15:30, 8 August 2021Thumbnail for version as of 15:30, 8 August 2021512 × 512 (17 KB)Fæ (talk | contribs)Radiopaedia project rID:87619 (batch #7439-47 D11)

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