PMC10233819_01
Genetic analysis identified homozygous C677T polymorphism in the MTHFR gene.
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F1
Genetic analysis identified C677T polymorphism that appeared to be homozygous (Figure 1).
(A-C) Brain magnetic resonance imaging (MRI) at onset. (A, B) Brain MRI of diffusion-weighted imaging (DWI) and FLAIR exhibited a high intensity area in the left fronto-temporal region. (C) Brain magnetic resonance angiography (MRA) showed occlusion of the left middle cerebral artery (MCA). (D-F) MRI 2 years after onset. (D, E) Brain MRI of diffusion-weighted imaging (DWI) and FLAIR exhibited a low intensity area in the left fronto-temporal region. (F) Brain MRA showed that the left MCA was recanalized but there were no findings of double lumen or string and pearls signs.
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F2
On diffusion weighted imaging and FLAIR of brain magnetic resonance imaging, a large high intensity area was seen in the left MCA territory (Figures 2A, B). Additionally, magnetic resonance angiography showed that the MCA was disrupted in the M1 segment (Figure 2C). MRI showed no new infarction (Figures 2D, E). MR angiography revealed that the occluded MCA had been recanalized, but no double lumen sign or string and pearls sign were detected (Figure 2F).