Glioblastoma NOS (butterfly morphology)
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Two selected images from a post contrast MRI demonstrates a large heterogeneous mass which crosses the corpus callosum into both frontal lobes.
Best seen on the coronal image is evidence of a previous left sided craniotomy and biopsy tract down to the lesion. Features are consistent with a butterfly glioma.
Typical appearances of a butterfly glioma, with little possible differential. Pathologically proven.
Note: This case predates the recent (2016) revision WHO classification of CNS tumours and IDH status is not available. As such, this tumour would now be classified as a glioblastoma NOS.