Research Article

Additional Diagnostic Value of Unenhanced Computed Tomography plus Diffusion-Weighted Imaging Combined with Routine Magnetic Resonance Imaging Findings of Early-Stage Gliblastoma

Figure 2

Magnetic resonance and computed tomography images of the brain. (a) Axial fluid-attenuated inversion recovery (FLAIR), (b) T1-weighted, (c) T2-weighted, and (d) contrast-enhanced magnetic resonance images show a poorly demarcated lesion involving the bilateral temporal lobe and hippocampus. The lesion shows homogeneous isointensity on T1-weighted imaging and homogeneous hyperintensity on T2-weighted and FLAIR imaging without perilesional edema or mass edema. The diffusion-weighted image shows an isointense lesion with a hyperintense region. Postcontrast magnetic resonance imaging shows no enhancement. (e) Axial-view head-window unenhanced computed tomography images of the head show a hyperattenuated region (arrow). (f) At the 7-week follow-up, the contrast-enhanced T1-weighted image shows a markedly larger ring and heterogeneously enhanced mass.
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