case_images: PMC10951707_01
case_images: Magnetic Resonance Imaging (MRI) at presentation Axial T2-weighted (T2-w) (A), FLAIR (B), DWI (C), ADC (D), non-contrast axial T1-weighted (T1-w) (E) and axial, sagittal and coronal post-gadolinium T1-w images (F, G, H) are shown. A large extra-axial mass is shown with intermediate signal intensity on T2-w. No diffusion restriction is present. Only mild edema is present. There is significant mass effect with subfalcine herniation. There is osseous and focal dural involvement, with striking thickened and enhancing dura along the left hemispheric convexity. Note that the dura is located within the tumor and thus detached from the skull by the tumor.
case_images: gr1.jpg
case_images: PMC10951707_01_gr1.jpg
case_images: fig1
case_images: Magnetic resonance imaging (MRI) of the brain (Fig. 1) showed a large, T2 hyperintense solid extra-axial left frontal mass with inward displacement of the frontal cortex and brain.
case_images: Postoperative Magnetic Resonance Imaging (MRI) at three months. Axial T2 (A) and T1-contrast-enhanced (B) MRI showing complete removal of the tumor with diminished left-sided dural thickening and enhancement extending to the basal dura mater (sagittal view in C).
case_images: gr2.jpg
case_images: PMC10951707_01_gr2.jpg
case_images: fig2
case_images: Notably, the left-sided dural enhancement and thickening was diminished (Fig. 2).