Fig. 3

Example of imaging and pathologic features of pseudoprogression in a glioblastoma patient 4 months after completing chemoradiation. a Medial, right frontal lobe enhancing mass which was completely resected due to concern for tumor recurrence. Pathology revealed treatment-related necrosis, hyalinized blood vessels, and b gliosis (hematoxylin and eosin stain), and a small amount of residual tumor which was not mitotically active (not shown). Figure was created for this manuscript by the authors