File:Cerebral hemorrhage secondary to arteriovenous malformation (Radiopaedia 33497-34572 Axial T2 4).png

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Summary:

Description
  • Radiopaedia case ID: 33497
  • Image ID: 10384442
  • Image stack position: 4/24
  • Plane projection: Axial
  • Aux modality: T2
  • Study findings: Right temporoparietal hematoma demonstrates mildly hyperintense T1, heterogeneous T2 and hypointense EPI signal consistent with blood product. Abnormal DWI signal within the lesion is due to blood product. No other diffusion restriction. There is surrounding FLAIR hyperintensity in keeping with vasogenic edema. Mass effect characterized by partial effacement of the right lateral ventricle and 2 mm leftward midline shift is stable. High FLAIR signal in right temporal sulci represents subarachnoid blood. Tortuous flow voids and enhancing serpiginous vessels are again evident at the lateral aspect of the hematoma along the cortical/pial surface, consistent with a 12 x 21 mm nidus. On the post contrast FSPGR, the nidus is supplied from the right middle cerebral artery and also from a PCA branch. There is a prominent cortical vein traversing from the posterior margin of the lesion into the posterior aspect of the superior sagittal sinus, and there may be smaller veins draining to the closely adjacent dural sinus (junction transverse and sigmoid). No deep venous drainage or intranidal aneurysm detected.
  • Modality: MRI
  • System: Central Nervous System
  • Findings: Intraparenchymal hematoma in the right superior temporal and parietal lobe. This demonstrates surrounding hypoattenuation most in keeping with vasogenic edema and is associated with mass effect characterized by minor leftward midline shift.
Date Published: 22nd Feb 2015
Source https://radiopaedia.org/cases/cerebral-haemorrhage-secondary-to-arteriovenous-malformation
Author Peter Mitchell
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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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current04:11, 27 July 2021Thumbnail for version as of 04:11, 27 July 2021512 × 512 (216 KB) (talk | contribs)Radiopaedia project rID:33497 (batch #6963-26 B4)

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