Male, 38 years old, with primary CNS lymphoma status post chemotherapy and radiation. No significant interval change is seen in the size or morphology of a T2 hyperintense hemosiderin stained lesion involving the left globus pallidus. A focus of enhancement internal to this lesion is unchanged as well.Also unchanged is a linear T2 hyperintense hemosiderin stained lesion involving the right basal ganglia and adjacent periventricular white matter. Again, minimal linear enhancement running through this lesion is not significantly changed.Encephalomalacia involving the right superior frontal gyrus is unchanged. No new intracranial signal abnormality or pathologic intracranial enhancement is detected.Patchy paranasal sinus mucosal thickening is seen along with an air-fluid level in the right maxillary sinus.
Stable lesions in the bilateral basal ganglia with no evidence of progressive or new intracranial disease.