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 Indian J Med Microbiol  
 

Figure 8: A 49-year-old man with a parasagittal meningioma underwent surgical resection and radiation therapy. Axial FLAIR (A) and diffusion-weighted (B) images show similar changes (arrows) in both frontoparietal regions. Whole brain CT perfusion (C and D) done to differentiate tumor recurrence from radiation necrosis shows very high CBF (black arrows in C) and CBV (black arrows in D) in the right frontoparietal lesion, most likely suggestive of tumor recurrence, compared to the left frontoparietal lesion, which shows low CBF (white arrows in C) and CBV (white arrows in D), suggestive of either postoperative changes or radiation necrosis

Figure 8: A 49-year-old man with a parasagittal meningioma underwent surgical resection and radiation therapy. Axial FLAIR (A) and diffusion-weighted (B) images show similar changes (arrows) in both frontoparietal regions. Whole brain CT perfusion (C and D) done to differentiate tumor recurrence from radiation necrosis shows very high CBF (black arrows in C) and CBV (black arrows in D) in the right frontoparietal lesion, most likely suggestive of tumor recurrence, compared to the left frontoparietal lesion, which shows low CBF (white arrows in C) and CBV (white arrows in D), suggestive of either postoperative changes or radiation necrosis