Wallerian degeneration

Case contributed by Frank Gaillard
Diagnosis certain


Longstanding hemiplegia.

Patient Data

Age: Adult

Note: This case has been tagged as "legacy" as it no longer meets image preparation and/or other case publication guidelines.


Selected axial CT images through the brainstem demonstrate loss of volume in the left side of the midbrain (cerebral peduncle). An old left MCA territory infarct is noted involving the corticospinal tracts. 

Case Discussion

This patient had a previous left middle cerebral artery territory infarct with resultant Wallerian degeneration of the corticospinal tracts. This results in reduction in volume of the ipsilateral cerebral peduncle and flattening of the left side of the pons. 

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