title: The "empty" right iliac fossa. Radiological features of a large retroperitoneal liposarcoma.
mesh_terms: D000368:Aged; D001859:Bone Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary*; D005260:Female; D006801:Humans; D007085:Ilium; D008080:Liposarcoma / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary*; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography