File:Brain death on MRI and CT angiography (Radiopaedia 42560-45841 B 44).jpg

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Brain_death_on_MRI_and_CT_angiography_(Radiopaedia_42560-45841_B_44).jpg ‎(547 × 549 pixels, file size: 127 KB, MIME type: image/jpeg)

Summary:

Description
  • Radiopaedia case ID: 42560
  • Image ID: 19242621
  • Image stack position: 44/51
  • Plane projection: Axial
  • Aux modality: C+ arterial phase
  • Study description: CT angiography performed 3 hours post MRI to confirm absent cerebral blood flow
  • Study findings: Diffuse brain swelling (loss of grey/white matter differentiation) with absent intracranial blood flow (despite excellent filling of external carotid arterial branches in the scalp (arrows).
  • Modality: CT
  • System: Central Nervous System
  • Findings: Diffuse brain swelling with obliteration of basal cisterns and tonsillar herniation through the foramen magnum but only minor restrcition of diffusion.  The key to this case is the presence of T2 signal in the internal carotid arteries in the carotid canals ie loss of the flow voids.  Recurrence of hemorrhagic melanoma in the anterior brain/genu of the corpus callosum following previous surgical excision.
Date Published: 28th Feb 2016
Source https://radiopaedia.org/cases/brain-death-on-mri-and-ct-angiography
Author Chris O'Donnell
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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