A case of chronic RRMS shows diffuse atrophy with periventricular white matter hyperintensity
MR spectroscopy from left parieto-occipital white matter, which has the maximum hyperintensity, shows, as expected raised choline, decreased NAA and presence of lactate, i.e changes of demyelination and tissue loss
MRS from right parieto-occipital white matter also shows decreased NAA/Cho ratio and raised lactate
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However, noteworthy is the presence of similar changes on spectroscopy in the normal appearing areas too
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However, noteworthy is the presence of similar changes on spectroscopy in the normal appearing areas too