Magnesiummangel

Cerebral

vasospasm and wernicke encephalopathy secondary to adult cyclic vomiting syndrome: the role of magnesium. Vasospasm in cerebral arteries secondary to hypomagnesemia. Coronal (a) and axial (b) CT angiography showing subtle focal changes in the vascular lumen of the right carotid circulation (a, white arrows) and overall decrease of the vascularization in the territory of the right middle cerebral artery (b, circled in white). Selective cerebral angiography injecting from the left internal carotid artery (c), without abnormalities, and from the right internal carotid artery (d), showing overall decrease of the vascularization, focal narrowing (d, white arrows) and segmental stenosis of several arteries (d, white box). CT angiography carried out 7 days after the previous one (e and f) showing complete resolution of the vascular changes. Diffusion weighted imaging (DWI) (g) and fluid attenuation inversion recovery (FLAIR) (h) sequences of brain MRI showing no relevant abnormalities