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These are technical terms in radiology -
It indicates a pathology at that site - Vascular infarction
, Multiple sclerosis
and so on / needs to be correlated with the clinical picture...
Discomfort in legs could also be vascular / or drug induced - like statin
, electrolyte imbalance
and so on.
It needs examination and/or investigation by the Internist.
Wishing speedy recovery