Figure 1.

Solitary fibrous tumor. Post-contrast computed tomography. A: A dural-based lobulated mass with dural tail enhancement (arrow); B: Axial T1-weighted magnetic resonance (MR) image shows an extra-axial mass, isointense to the gray matter compressing the adjacent cortical convolutions (arrow); C: Axial T2-weighted MR image shows that the mass has intermediate signal intensity. Note the peritumoral cysts with high signal intensity (arrow); D: On the post-contrast, T1-weighted MR image, the mass shows intense enhancement, intra-tumoral cysts (arrowheads) and dural tail sign (arrow).