What is the role of MRI in the workup of Henoch-Schönlein purpura (IgA vasculitis)?

Updated: Jan 08, 2021
  • Author: Rajendra Bhimma, MBChB, MD, PhD, DCH (SA), FCP(Paeds)(SA), MMed(Natal); Chief Editor: Craig B Langman, MD  more...
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Magnetic resonance imaging (MRI) is useful for assessing neurologic findings in IgAV. In particular, MRI is the most sensitive imaging technique for posterior reversible encephalopathy syndrome (PRES), a clinico-radiological syndrome that may rarely complicate IgAV. The clinical manifestations of PRES include headache, seizures, visual disturbances, lethargy, confusion, stupor, and focal neurologic findings. MRI shows bilateral gray and white matter abnormalities suggestive of edema in the posterior regions of the cerebral hemispheres. [97]

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