File:Arachnoid cyst - suprasellar (Radiopaedia 8914-14353 Sagittal T2 1).jpg

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Summary:

Description
  • Radiopaedia case ID: 8914
  • Image ID: 357936
  • Plane projection: Sagittal
  • Aux modality: T2
  • Study description: MRI following surgery
  • Study findings: A third ventriculostomy was performed, and the floor of the cyst was also opened into the interpeduncular cistern. Prominent CSF pulsation can be seen continuously from the third ventricle to the prepontine cistern. Note the reduced distortion on the optic chiasm and pituitary infundibulum.
  • Modality: MRI
  • System: Central Nervous System
  • Findings: MRI demonstrates a CSF intensity space distorting the optic chiasm and pituitary infundibulum (pushing them forwards and upwards). A thin membrane can be seen (best on sagittal and axial T2 weighted images) invaginating upwards into the third ventricle, splaying the septum pellucidum and even bulging into the left foramen of Munro. The lateral ventricles are dilated, in keeping with obstructive hydrocephalus, clearly long standing (note large size and lack of transependymal edema).
Date Published: 9th Mar 2010
Source https://radiopaedia.org/cases/arachnoid-cyst-suprasellar
Author Frank Gaillard
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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current20:49, 23 May 2021Thumbnail for version as of 20:49, 23 May 20211,024 × 1,024 (114 KB)Fæ (talk | contribs)Radiopaedia project rID:8914 (batch #2851-1 A1)

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