case_images: PMC11753215_01
case_images: Magnetic resonance images from case 1. (A) Hypersignal of the right basal ganglia and thalamus on fluid-attenuated inversion recovery (FLAIR). (B) Nodular enhancement of the right cerebral peduncle on dynamic enhanced magnetic resonance imaging.
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case_images: PMC11753215_01_fimmu-15-1510097-g001.jpg
case_images: f1
case_images: C. Cranial plain magnetic resonance imaging (MRI) performed half a month prior to admission revealed hypointensity on T1-weighted images, hyperintensity on T2-weighted images, and hyperintensity on T2-fluid-attenuated inversion recovery (FLAIR) in the right temporal lobe, right pontine, right thalamus, and right basal ganglia with nodular enhanced ( Figures 1A, B ).
case_images: Timeline of clinical course and treatment regimens for case 1.
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case_images: PMC11753215_01_fimmu-15-1510097-g002.jpg
case_images: f2
case_images: The timeline of the treatment is shown in  Figure 2 .
case_images: PMC11753215_02
case_images: Magnetic resonance images from case 2. (A) Hypersignal of the brain stem and the area postrema on T2-weighted image. (B) Nodular enhancement on dynamic enhanced magnetic resonance imaging (MRI).
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case_images: PMC11753215_02_fimmu-15-1510097-g003.jpg
case_images: f3
case_images: T1-weighted images, and hyperintensity on T2 FLAIR images in the brain stem and the area postrema with enhancement of meninges ( Figures 3A, B ). The patient was healthy, with no history of similar symptoms or family history of autoimmune diseases.
case_images: Timeline of clinical course and treatment regimens for case 2.
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case_images: PMC11753215_02_fimmu-15-1510097-g004.jpg
case_images: f4
case_images: The timeline of the treatment is shown in  Figure 4 .