Published in:
01-04-2020 | Neuro-Images
Cerebral arterial and venous MRI abnormalities in MELAS
Published in: Acta Neurologica Belgica | Issue 2/2020
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We present three mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes (MELAS) patients showing cerebral arterial and venous MRI abnormalities. Reversible lateralized (to the stroke-like episode) cerebral artery dilatation during the stroke-like episode was observed in two patients on TOF imaging and in one patient on SWI (Fig. 1). The first two patients also showed abnormal cortical veins, stable during and between stroke-like episodes, outside stroke-like episode areas (Fig. 1).
Fig. 1
MRI of three MELAS patients (patient 1, a–d; patient 2, e–h; and patient 3, i–l) showing unilateral large/middle-sized middle and posterior cerebral artery dilatation during stroke-like episode (DWI, a and e; TOF images, b and f; and SWI, i–l), disappearing 6 months later (c, g). FLAIR imaging (d and h) showing cortical vein hyperintensities in patients 1 and 2
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