Peripheral Nerve MRI T2 Hyperintensity

[JBM16BYU]

Technical question. Regarding MRI T2 hyperintensities, if a patient shows T2 hyperintensities of the femoral nerve on MRI, can that be found because of an L4 radiculopathy caused by an anatomic disc compression or does that have to be from primary insult to the femoral nerve at that location? Essentially, can T2 hyperintensities show up downstream from an injury or does it signify focal injury at that location? Thanks in advance!

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