Wallerian degeneration post striatocapsular infarct
Citation, DOI and case data
Multiple prior left-sided ischemic stroke episodes, recently worsening memory, horizontal gaze disturbance. Organic cause?
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- On the left side along the lateral ventricle an elongated about 8 cm long area of marked almost liquor-like T2/FLAIR hyperintensity is visible corresponding to a prior MCA striatocapsular area infarct (territory supplied by M1 perforator end arteries). The prior infarct is surrounded by confluous gliosis.
- Resultant ex vacuo dilation of the ipsilateral ventricular system and also marked atrophy of the left cerebral peduncle.
- In the anterior medulla an about 5 mm T2 hyperintense lesion can be discerned, possibly representing prior ischemic infarct.
- On SWI images multiple, bilateral susceptibility artifacts are visible in the basal ganglia and thalami, and also adjacent to the frontal and temporal cortex, representing prior microinfarcts.
- Dolichoectatic basilar artery.
- Subtle signal inhomogenity of the visualized distal part of the left vertebral artery, CTA recommended for further evaluation.
The case demonstrates multiple late sequelae of a prior MCA area striatocapsular ischemic infarction.