Radiology MRI

T2 shows bilateral subacute-chronic subrudal hematomas (SDHs). T1 with Gadolinium shows increased dural enhancement. FLAIR shows SDHs and sagging of cerebellar tonsils. T1 sagittal shows sagging of midbrain and cerebellar tonsils.

CT without contrast shows status after old MCA infarct on the right. Note hypodense degeneration in the corticospinal pyramidal tracts on the corresponding side. Wallerian Degeneration (WaD) is a secondary anterograde degeneration of axons and their myelin sheaths caused by proximal axonal or neuronal cell body lesions. MR would show those changes even better.