Fig. 4
From: Solid malignant retroperitoneal masses—a pictorial review
Imaging of solitary fibrous tumour (SFT). a A 40-year-old woman with a palpable abdominal wall. CT showed an intensely enhancing mass (arrow). SFTs in certain locations, such as the abdominal wall and the liver, are predominantly seen in female patients. b, c A 63-year-old man with a long-standing history of back pain. MRI of the spine incidentally picked up a mass in the retroperitoneum and CT of the abdomen was performed. Axial (b) contrast-enhanced CT shows a left sided large heterogeneous retroperitoneal mass (arrow) showing enhancement with central necrotic area, which is displacing and compressing the adjacent kidney causing mild hydronephrosis (arrowhead). Coronal CT (c) in the same patient shows the large mass causing distortion of the left kidney and left renal vessels