File:Chiari I malformation and obstructive hydrocephalus (Radiopaedia 41185-43978 Axial T1 C+ 1).png

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Chiari_I_malformation_and_obstructive_hydrocephalus_(Radiopaedia_41185-43978_Axial_T1_C+_1).png ‎(512 × 512 pixels, file size: 172 KB, MIME type: image/png)

Summary:

Description
  • Radiopaedia case ID: 41185
  • Image ID: 17520013
  • Image stack position: 1/31
  • Plane projection: Axial
  • Aux modality: T1 C+
  • Study description: MRI Brain
  • Modality: MRI
  • System: Central Nervous System
  • Findings: Pre-and post-contrast scans of the brain including dedicated pituitary fossa imaging were performed. There is evidence of a Chiari malformation with elongated cerebellar tonsils extending 2 cm below the foramen magnum. There is marked crowding at foramen magnum with mass effect on the upper cervical cord and brainstem. No evidence of syrinx within the upper cervical cord. There is secondary obstructive hydrocephalus with marked lateral and third ventriculomegaly. The floor of the third ventricle is bowed into the suprasellar region. No evidence of transependymal edema, however, the cerebral cortical sulci appear mildly effaced. The sella appears "empty" with a prominent suprasellar cistern and pituitary tissue compressed along the floor of the sella. No pituitary mass lesion is identified. Impression: Chiari one malformation with obstructive hydrocephalus. No MRI evidence of a pituitary mass lesion.
Date Published: 22nd Nov 2015
Source https://radiopaedia.org/cases/chiari-i-malformation-and-obstructive-hydrocephalus
Author Rajalakshmi Ramesh
Permission
(Permission-reusing-text)		 http://creativecommons.org/licenses/by-nc-sa/3.0/

Licensing:

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

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current23:51, 8 August 2021Thumbnail for version as of 23:51, 8 August 2021512 × 512 (172 KB)Fæ (talk | contribs)Radiopaedia project rID:41185 (batch #7464-25 B1)

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