Fig. 2

Primary ASPS within the pelvis in a pelvic 22 year old female (a) and intra-abdominal primary ASPS in a 24 year old male (b) patient. Post contrast axial (a) and coronal (b) CT demonstrates large tortuous feeding vessels at the periphery of both tumours (black arrows) with marked tumour hypervascularity. Although there is significant mass effect, both masses demonstrate well defined borders with no evidence of local invasion