Legend Axial FLAIR and T2 images show a hyperintense lesion within the left occipital lobe extending into the splenium of the corpus callosum with resultant mass effect upon the trigone of the left lateral ventricle. A thick rim of intermediate signal intensity tissue is noted along the posterior margin of the lesion. The T2 image shows a developing thin rim of hypointensity surrounding the hyperintense component consistent with developing hemosiderin from hemorrhage.

Legend Coronal precontrast T1 (center), and Axial post Gadolinium T1 (bottom left and right) images show central hyperintensity from hemorrhage, as well as a thick rim of abnormal enhancement. Peri- and intraventricular spread of enhancing tumor is noted as well (bottom left). Tumor extends across the midline within the corpus callosum (bottom right). Key words: mri tumor neoplasia

Brain Diagnosis: Glioblastoma