case_images: PMC11821465_01
case_images: Magnetic resonance imaging of the brain of a dog with steroid-responsive meningitis-arteritis with intracerebral/intramedullary extension consisting of sagittal T2-weighted (T2W) image of the brain (A) and transverse T2W image of the brain at the level of medulla oblongata (B). There is an extensive ill-defined area of T2W hyperintensity relative to normal grey matter in the brainstem (arrowhead; A, B). Histopathology of the same dog including the brainstem and meningeal vasculature (inset) showing multifocal necrotising vasculitis with perivascular infiltrates of macrophages, lymphocytes, plasma cells and neutrophils (black arrows) (C; H&E stain; 250 mum scale bars).
case_images: JSAP-66-145-g001.jpg
case_images: PMC11821465_01_JSAP-66-145-g001.jpg
case_images: jsap13806-fig-0001