Presentation
Presents with acute altered mental status.
Patient Data
Age: 85 years
Gender: Female
Axial non-contrast
CT demonstrates bilateral paramedian thalamic and mild rostral midbrain hypoattenuation.
Axial non-contrast
A repeat CT 3 days later, demonstrates a more evident bilateral paramedian thalamic and rostral midbrain infarction.
Case Discussion
The imaging differential of bithalamic lesions is broad and includes arterial and venous occlusion, infiltrative neoplasm, and infectious and inflammatory lesions. This case, with acute history, clinical evolution and a new CT scan in a few days, confirms an artery of Percheron infarct.
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