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FIG 3. 57-year-old woman with history of right frontal glioblastoma multiforme and new abnormal enhancement on follow-up imaging after surgery and proton beam irradiation therapy. A, Arrows on this postcontrast axial T1-weighted image illustrate multiple enhancing lesions and spread to the contralateral hemisphere. B, Arrows on this postcontrast axial T2-weighted image illustrate the location of abnormal enhancement on the axial T1-weighted images, as well as associated vasogenic or tumor edema. Biopsy of a portion of the abnormality yielded recurrent tumor.
