- a well-defined rounded soft tissue lesion measuring 1.6 x 1.8 cm is seen at the grey-white matter junction in the right frontal lobe. The lesion is isointense on T1 & T2-weighted images, is surrounded by significant vasogenic edema, shows restricted diffusion (high on DWI & low on ADC), and shows intense homogeneous contrast enhancement on the post-contrast study. Spectroscopy of the right frontal lobe lesion shows increased choline peak, reversed choline/creatinine ratio, low NAA, and high lactate levels
- two other tiny suspicious nodules measuring 4 & 2 mm, showing restricted diffusion, are seen at the grey-white matter junction at the medial aspect of the right parietal lobe
- no midline shift is seen
- bilateral periventricular white matter ischemic changes and age-related brain involutional changes