case_images: PMC11801818_01
case_images: Axial view of the cerebral CT scan (noncontrast), showing no ischemic lesions. CT: computed tomography
case_images: cureus-0017-00000077061-i01.jpg
case_images: PMC11801818_01_cureus-0017-00000077061-i01.jpg
case_images: FIG1
case_images: Brudzinski and Kernig tests. Brain and supra-aortic computed tomography (CT), with contrast, revealed no ischemic areas or intra-arterial thrombosis/stenosis (Figure 1).
case_images: Echocardiogram, showing no signs of endocarditis
case_images: cureus-0017-00000077061-i02.jpg
case_images: PMC11801818_01_cureus-0017-00000077061-i02.jpg
case_images: FIG2
case_images: Diagnostic studies included sinus rhythm on electrocardiogram and a normal echocardiogram without any images suggestive of endocarditis (Figure 2).
case_images: Axial view of cerebral MRI (T2 FLAIR). The red arrows (left hemisphere) show an area of restricted diffusion in the left corona radiata, posterior limb of the internal capsule, and small acute parietal lesion. The blue arrows (right hemisphere) reveal microvascular ischemic lesions. MRI: magnetic resonance imaging; FLAIR: fluid-attenuated inversion recovery
case_images: cureus-0017-00000077061-i03.jpg
case_images: PMC11801818_01_cureus-0017-00000077061-i03.jpg
case_images: FIG3
case_images: Axial view of cerebral MRI (DWI). The red arrows show the acute ischemic lesion. MRI: magnetic resonance imaging; DWI: diffusion-weighted imaging
case_images: cureus-0017-00000077061-i04.jpg
case_images: PMC11801818_01_cureus-0017-00000077061-i04.jpg
case_images: FIG4
case_images: Axial view of cerebral MRI (T2*). (A,B) The bilateral microhemorrhages at different levels (red arrows). MRI: magnetic resonance imaging
case_images: cureus-0017-00000077061-i05.jpg
case_images: PMC11801818_01_cureus-0017-00000077061-i05.jpg
case_images: FIG5