Abstract
ObjectiveDistal nerve degeneration refers to the process of disintegration of a neuron or neuronal circuit as a consequence of distal damage. The end result of multiple etiologies, this finding is becoming common due to the increasing number of imaging tests done. This paper aims to define the different types of distal nerve damage, review the anatomy and function of the most commonly affected tracts, and illustrate distal nerve damage through diagrams and representative cases from routine practice. ConclusionKnowing the distant response that can be expected according to the topography of a neuronal lesion is crucial to avoid diagnostic errors. Axonal degeneration and transsynaptic degeneration can be both antegrade and retrograde. Studies of cerebral metabolism, perfusion sequences, and diffusion sequences are showing increasingly earlier changes related to the same process; radiologists need to be aware of these changes.
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