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Figure 2: Example of pseudoprogression after vaccination. (A) T1-weighted contrast-enhanced magnetic resonance image (MRI) from a 59-year-old patient with biopsy-proven glioblastoma before vaccination. (B) Eight weeks after vaccination, a significant increase in contrast enhancement was shown. (C) On a follow-up MRI 24 weeks later, a significant reduction was observed in the enhancing lesions. |