Wallerian degeneration

Case contributed by Dr Prashant Gupta

Presentation

history of fever with rash 2 yrs prior followed by left hemiparesis

Patient Data

Age: 6 years
Gender: Female
Modality: MRI

There is a well definbed area of cystic encephalomaalcia in right fronto-parietal cortex consistent with a chronic infarct.

Linear hyperintense band seen tracing inferiorly from this region with loss of volume of the ipsilateral posterior limb of right internal capsule and right cerebral peduncle.

Case Discussion

MRI depicts anterograde wallerian degeneration very well.

It is seen as a band of T1 and T2 prolongation topographically limited to the region of the involved tract.

The cerebral peduncle is the best region to assess for volume loss as the pyramidal tract fibers here traverse in an almost parallel manner.

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Case Information

rID: 18691
Case created: 18th Jul 2012
Last edited: 15th Dec 2015
Inclusion in quiz mode: Excluded

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