Cavernous angioma MRI: Difference between revisions

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==[[MRI]]==
==[[MRI]]==


*These [[lesions]] are usually described as [[popcorn-like]], smooth, ppwell-circumscribed]] complex lesions.<ref name="pmid33091393">{{cite journal| author=Rafee S, Killeen RP, Tubridy N| title='Popcorn' in the Brain: A Cause for Confusion. | journal=Am J Med | year= 2021 | volume= 134 | issue= 2 | pages= 216-217 | pmid=33091393 | doi=10.1016/j.amjmed.2020.09.014 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=33091393  }} </ref>
*These [[lesions]] are usually described as [[popcorn-like]], smooth, [[well-circumscribed]] complex lesions.<ref name="pmid33091393">{{cite journal| author=Rafee S, Killeen RP, Tubridy N| title='Popcorn' in the Brain: A Cause for Confusion. | journal=Am J Med | year= 2021 | volume= 134 | issue= 2 | pages= 216-217 | pmid=33091393 | doi=10.1016/j.amjmed.2020.09.014 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=33091393  }} </ref>
*There is a foci of p[[mixed-signal intensities]] in the core, which signifies the presence of [[hemorrhage]] in different stages of evolution.
*There is a foci of [[mixed-signal intensities]] in the core, which signifies the presence of [[hemorrhage]] in different stages of evolution.
*On [[T1-weighted images]], there is a [[low-signal-intensity]] [[hemosiderin]] rim bordering the heterogeneous core. .
*On [[T1-weighted images]], there is a [[low-signal-intensity]] [[hemosiderin]] rim bordering the heterogeneous core.
*[[Focal hypointense nodules]] are usually associated with smaller [[cavernous malformation lesions]] in both [[T1- and T2-weighted sequences]]. These small lesions become more evident in [[gradient-echo images]] due to  increased susceptibility effects of the sequences.
*[[Focal hypointense nodules]] are usually associated with smaller [[cavernous malformation lesions]] in both [[T1- and T2-weighted sequences]]. These small lesions become more evident in [[gradient-echo images]] due to  increased susceptibility effects of the sequences.


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[[Category:Genetic disorders]]
[[Category:Genetic disorders]]
[[Category:Dermatology]]
[[Category:Dermatology]]
[[Category:Needs english review]]
[[Category:Up to Date]]

Latest revision as of 13:39, 12 May 2022

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]<nowiki>; Associate Editor(s)-in-Chief: Edzel Lorraine Co, D.M.D., M.D.

Overview

Diagnosis can be made through incidental findings from magnetic resonance imaging (MRI) screening. A gradient-echo sequence should be utilized to unmask punctate lesions which can go undetected. These lesions are more visible on FLAIR imaging than on T2 weighing. As compared to T2 weighing, FLAIR imaging has more suppression of free-flowing fluid signals.

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References

  1. Rafee S, Killeen RP, Tubridy N (2021). "'Popcorn' in the Brain: A Cause for Confusion". Am J Med. 134 (2): 216–217. doi:10.1016/j.amjmed.2020.09.014. PMID 33091393 Check |pmid= value (help).