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. 2019 Jun 6;14(6):e0217881. doi: 10.1371/journal.pone.0217881

Fig 3. Symptomatic grade 3 radiation necrosis.

Fig 3

a) Axial fat-saturated contrast-enhanced T1-weighted image (CE T1-WI) MRI 4 months after HFRT/TMZ, showing mostly linear enhancement surrounding the surgical cavity in left temporal lobe. b) Axial CE T1-WI of the same patient 2 months later (6 months after HFRT/TMZ), shows increased enhancement with a "soap-bubble" pattern, suggestive of radiation necrosis/pseudoprogression. c) Axial perfusion-weighted cerebral brain volume (CBV) map fused over CE T1-WI shows decreased perfusion values in the enhancing area, further supporting radiation necrosis.