Glioblastoma Multiforme

Findings:

Multiple MR images demonstrate a lobulated mass near midline which demonstrates increased T1 and decreased T2 signal with surrounding FLAIR hyperintensity in both frontal lobes. Additional MR images confirm that the dominant mass arises within the corpus callosum with a contiguous poorly defined enhancing centrally necrotic mass involving the right frontal parasagittal cortex.

Discussion:

nCC mass simulates extraaxial, but is contiguous with R frontal more clearly intraaxial mass
nSignal characteristics of CC mass are atypical, T1 hyperintense precontrast not commonly seen with meningioma, but bizarre signal characteristics are not uncommon with GBM
nAdditional discussion of GBM and other primary glial neoplasms is found with multiple other cases on this site

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