Microscopic polyangiitis MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Ali Poyan Mehr, M.D. [2] Krzysztof Wierzbicki M.D. [3] Vamsikrishna Gunnam M.B.B.S [4]


Magnetic resonance imaging (MRI) is one of the most commonly used imaging modality in the workup of patients who are suspected to have cerebral vasculitis.Head MRI may be helpful in the diagnosis of microscopic polyangiitis. Findings on MRI suggestive of microscopic polyangiitis include cerebral hemorrhage and white matter lesions.


  • Head MRI may be helpful in the diagnosis of microscopic polyangiitis. Findings on MRI suggestive of microscopic polyangiitis include [1][2][3][4]
    • Cerebral hemorrhages.
    • white matter lesions.
    • lacunar thrombosis.
    • Thalamic infarction.
    • Cerebral microbleeds.


  1. Yamashiro K, Mori A, Shimada Y, Furuya T, Noda K, Urabe T, Hattori N, Okuma Y (November 2012). "Gradient echo T2*-weighted magnetic resonance imaging revealing cerebral microbleeds in a patient with microscopic polyangiitis complicated by cerebrovascular disease". J Stroke Cerebrovasc Dis. 21 (8): 904.e7–9. doi:10.1016/j.jstrokecerebrovasdis.2011.04.020. PMID 21640612.
  2. Abdel Razek, Ahmed Abdel Khalek; Alvarez, Hortensia; Bagg, Stephen; Refaat, Sherif; Castillo, Mauricio (2014). "Imaging Spectrum of CNS Vasculitis". RadioGraphics. 34 (4): 873–894. doi:10.1148/rg.344135028. ISSN 0271-5333.
  3. Isoda K, Nuri K, Shoda T, Kotani T, Satoh T, Ishida S, Takeuchi T, Makino S, Hanafusa T (2010). "Microscopic polyangiitis complicated with cerebral infarction and hemorrhage: a case report and review of literature". Nihon Rinsho Meneki Gakkai Kaishi. 33 (2): 111–5. PMID 20453448.
  4. Nighoghossian N, Hermier M, Adeleine P, Blanc-Lasserre K, Derex L, Honnorat J, Philippeau F, Dugor JF, Froment JC, Trouillas P (March 2002). "Old microbleeds are a potential risk factor for cerebral bleeding after ischemic stroke: a gradient-echo T2*-weighted brain MRI study". Stroke. 33 (3): 735–42. PMID 11872897.

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