top of page


A 67 year-old male is admitted with global aphasia and right-sided weakness. A few hours later, he develops left-sided weakness. Around two months ago, he was diagnosed with lung cancer. The biopsy showed an adenocarcinoma. His wife has also noticed a rash affecting both legs (see image below). MRI DWI and ADC images of the brain are also shown. In addition, a CT angiogram shows several areas of dilatation and stenosis affecting branches of the middle and anterior cerebral arteries bilaterally. What is the most likely diagnosis?


A. Cerebral metastases

B. IgA vasculitis

C. Infective endocarditis 

D. Microscopic polyangiitis

E. Polyarteritis nodosa

bottom of page