Fig. 12

Solitary fibrous tumour A well-circumscribed homogeneous lesion (red arrow) arising from the left posterolateral prostate wall is seen in (a) sagittal and (b) axial T2W images as isointense to prostate (white arrow) and hyperintense to gluteus muscle (blue arrow). c DWI and (d) ADC images demonstrate diffusion restriction in the lesion. In e and f the lesion is iso- to mildly T1 hyperintense to prostate and shows uniform contrast enhancement. This was biopsy-proven solitary fibrous tumour