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Magnetic resonance angiogram. (A) Maximum intensity reconstruction from time of flight magnetic resonance angiogram (MRA) showing segmental irregularity and narrowing involving the distal bilateral posterior cerebral arteries and left middle cerebral artery (arrows). (B) Follow-up MRA after six weeks shows complete resolution of the vascular abnormality.
Source publication
Leptomeningeal carcinomatosis is the result of metastatic infiltration of the leptomeninges by malignant cells originating from an extra-meningeal primary tumor site. We describe a patient with active breast cancer who presented with thunderclap headaches (THs) and imaging showing multi-segment irregular arterial narrowing of intracranial vasculatu...
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Context 1
... subsequently had two discrete episodes of confusion with aphasia and left upper extremity numbness, prompting transfer to our tertiary care center. Upon admission, repeat brain MRA showed similar arterial irregularity and narrowing, more prominent in the anterior than posterior intracranial vessels ( Figure 1A). Brain MRI with contrast showed nodular leptomeningeal enhancement throughout the supratentorial and infratentorial compartments and a small area of restricted diffusion in the left inferior cerebellar hemisphere. ...
