Clinical question: Evaluate for growth of AA. Status post surgery, RT/TMZ. Now off all treatment. Signs and symptoms:AA. Pre-and post-enhanced brain MRI:No diffusion weighted abnormalities.Diffuse focus of flair hyperintensity in the high convexity left posterior frontal and parietal region is again identified and extends from the cortex to the ventricular wall of the left lateral ventricle. The extent of findings remains identical to prior exam. Within this region there is an irregular thin linear and focus of enhancement which appears nearly identical to prior exam. This focus of enhancement measures 27-mm in its longest AP axis and 22-mm in transverse axis identical to prior study. There is no appreciable mass effect with the above findings. There is mild expansion of trigone of left lateral ventricle similar to prior exam. There is no detectable pneumatosis RAO parenchymal signal abnormality or abnormal enhancement.
Stable left hemispheric large focus of flair hyperintensity and internal irregular thin linear enhancement at the site of previously treated tumor.