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. 2020 Jan 10;62(3):283–300. doi: 10.1007/s00234-019-02335-5

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© The Author(s) 2020

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Fig. 1 — a Axial post-contrast T1-weighted MRI at the level of the corona radiata in a 39-years-old male affected by vitamin B₁₂ deficiency. Note the miliary-enhancing nodules in addition to linear enhancement along the pathway of perforating vessels, suggestive for PVS involvements. In this patient, brain abnormalities totally resolved after vitamin B₁₂ suppletion therapy. b Note on a T2-weighted MRI in a different and healthy subject the T2 hyperintense prominent PVS identical to the enhancement pattern