39-year-old female with altered mental status. There is no evidence of intracranial hemorrhage, mass or edema. There is focal low attenuation in the left basal ganglia, which may represent a prior lacunar infarction or perivascular space. Further evaluation with MRI may be considered if clinically indicated. There is diffuse parenchymal volume loss.The ventricles and basal cisterns are normal in size and configuration.The calvaria and skull base are radiographically normal. The visualized paranasal sinuses and mastoid air cells are normally pneumatized.
Focal low attenuation in the left basal ganglia may represent prior lacunar infarction or perivascular space. If stroke is clinically suspected, MRI may be considered for further evaluation.