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(A) Sagittal T1 post-contrast showing large area of right occipitoparietal lesion with a ring-like enhancing pattern (left image) and axial T2 FLAIR MRI showing substantial peri-lesional edema (right image). (B) Sagittal T1 post-contrast MRI showing marked increase in the size of the right parietal lobe lesion with surrounding local edema and enhancement.
