Fig. 1From: Mild encephalitis/encephalopathy with a reversible splenial lesion associated with systemic Mycoplasma pneumoniae infection in North America: a case reportNeuroimaging demonstrating splenium of corpus callosum hyperintensity. Brain magnetic resonance imaging T2 fluid-attenuated inversion recovery sequence demonstrating A hyperintensity involving the splenium of the corpus callosum (red arrow), aka the “Boomerang Sign” [16], with B resolution of hyperintense signal on repeat imaging after 5 days (blue arrow) since initial imaging, and 2 days after pulse-dose intravenous steroids.Back to article page