case_images: PMC11300209_01
case_images: Radiological examinations of case 1 before and after intravenous immunoglobulin (IVIg). (A, B) No evidence of cerebral infarction before IVIg on diffusion-weighted imaging (DWI). (C) Computed tomography angiography showing occlusion of the intracranial segment of the left vertebral artery. (D-F) DWI of the right cerebellum, left frontotemporal cortical area, and right frontal cortical area showing restricted diffusion of the lesion after IVIg.
case_images: fimmu-15-1433240-g001.jpg
case_images: PMC11300209_02_fimmu-15-1433240-g001.jpg
case_images: f1
case_images: MRC) on August 20, and D-dimer and fibrinogen degradation products were elevated ( Figure 2 , right). MRI revealed multiple cerebral infarctions in the bilateral parieto-occipital and left frontal lobes on August 22 ( Figures 1D-F ).
case_images: D-dimer and fibrinogen degradation products were progressively elevated after IVIg. Horizontal axis: date. Vertical axis on the left: fibrinogen degradation products. Vertical axis on the right: D-dimer, fibrinogen. D-dimer reference range: <=0.55 mg/L; fibrinogen degradation product reference range: <=5 mug/L. IVIg, intravenous immunoglobulin.
case_images: fimmu-15-1433240-g002.jpg
case_images: PMC11300209_02_fimmu-15-1433240-g002.jpg
case_images: f2
case_images: MRC) on August 20, and D-dimer and fibrinogen degradation products were elevated ( Figure 2 , right). MRI revealed multiple cerebral infarctions in the bilateral parieto-occipital and left frontal lobes on August 22 ( Figures 1D-F ).
case_images: PMC11300209_02
case_images: Radiological examinations of case 1 before and after intravenous immunoglobulin (IVIg). (A, B) No evidence of cerebral infarction before IVIg on diffusion-weighted imaging (DWI). (C) Computed tomography angiography showing occlusion of the intracranial segment of the left vertebral artery. (D-F) DWI of the right cerebellum, left frontotemporal cortical area, and right frontal cortical area showing restricted diffusion of the lesion after IVIg.
case_images: fimmu-15-1433240-g001.jpg
case_images: PMC11300209_02_fimmu-15-1433240-g001.jpg
case_images: f1
case_images: MRC) on August 20, and D-dimer and fibrinogen degradation products were elevated ( Figure 2 , right). MRI revealed multiple cerebral infarctions in the bilateral parieto-occipital and left frontal lobes on August 22 ( Figures 1D-F ).
case_images: D-dimer and fibrinogen degradation products were progressively elevated after IVIg. Horizontal axis: date. Vertical axis on the left: fibrinogen degradation products. Vertical axis on the right: D-dimer, fibrinogen. D-dimer reference range: <=0.55 mg/L; fibrinogen degradation product reference range: <=5 mug/L. IVIg, intravenous immunoglobulin.
case_images: fimmu-15-1433240-g002.jpg
case_images: PMC11300209_02_fimmu-15-1433240-g002.jpg
case_images: f2
case_images: MRC) on August 20, and D-dimer and fibrinogen degradation products were elevated ( Figure 2 , right). MRI revealed multiple cerebral infarctions in the bilateral parieto-occipital and left frontal lobes on August 22 ( Figures 1D-F ).
case_images: Radiological examinations of case 2 before and after intravenous immunoglobulin (IVIg). (A, B) No evidence of cerebral infarction before IVIg on diffusion-weighted imaging (DWI). (C) Computed tomography angiography showing right vertebral artery stenosis. (D-F) DWI of the bilateral parieto-occipital and left frontal lobes showing restricted diffusion of the lesion after IVIg.
case_images: fimmu-15-1433240-g003.jpg
case_images: PMC11300209_02_fimmu-15-1433240-g003.jpg
case_images: f3
case_images: Cranial MRI revealed no evidence of cerebral infarction ( Figures 3A, B ). CTA showed right vertebral artery stenosis, and no significant abnormalities were observed in the aortic arch ( Figure 3C ).