Bookmark and Share
Click A 72 year old female patient with retroperitoneal liposarcoma. Axial T1 W MRI of abdomen demonstrates huge retroperitoneal liposarcoma resulting in anterior/cranial displacement of the right kidney towards the right anterior abdominal wall. This series illustrates an elongated left renal vein attributed to dragging effect of the huge tumor mass on the right side. The tumor is hypointense relative to the muscle.(Protocol: Siemens Avanto 1.5T, T1 FLASH (fast low angle shot) 2d transversal; TR 13, TE 4.82, flip angle 70, non contrast.

Click A 72 year old female patient with retroperitoneal liposarcoma. Coronal T1 W MRI of abdomen demonstrates huge retroperitoneal liposarcoma resulting in anterior/cranial displacement of the right kidney towards the right anterior abdominal wall. In this series mass effect can be well demonstrated without enhancement; however, vascular anatomy and patency are not well depicted without intravenous contrast material (Protocol: Siemens Avanto 1.5T, T1 true FISP (fast imaging with steady state precession) coronal; TR 437.2, TE 1.16, flip angle 65, non contrast).

Click A 72 year old female patient with retroperitoneal liposarcoma. Axial T2 W MRI of abdomen demonstrates huge retroperitoneal liposarcoma with heterogeneous hyperintense signal relative to muscle. (Protocol: Siemens Avanto 1.5Tesla magnet, T2 HASTE IR (half Fourier-acquired single shot turbo spin echo inversion recovery) transversal; TR 600, TE 68, flip angle 180, non contrast).

Click A 72 year old female patient with retroperitoneal liposarcoma. Contrast-enhanced axial CT image of abdomen (CT radiation-therapy planning) shows a huge retroperitoneal liposarcoma resulting in anterior/cranial displacement of the right kidney towards the right anterior abdominal wall. This tumor mass contains multiple thick irregular septa with delayed contrast enhancement. Bilateral ureteral stent catheter; note the right catheter is visible outside the renal collecting system ventral of the mass. CT-Protocol: Siemens-Somaris/5 3D Software version VA47C at 300 mAs and 120 kV, 3 mm slice thickness, contrast enhanced with 120 ml intravenous Omnipaque.

Click A 72 year old female patient with retroperitoneal liposarcoma. Axial contrast-enhanced T1-weighted MRI demonstrating a huge retroperitoneal liposarcoma with heterogeneous enhancement. In this series vascular anatomy and patency are better depicted. Furthermore apparent demonstration of kidney cyst (Bosniak category I); right side. Protocol: Siemens Avanto 1.5Tesla magnet, T1 FLASH (fast low angle shot) 2D transversal, TR 145, TE 3.57, flip angle 70 post contrast (20ml Magnevist?).

Click A 72 year old female patient with retroperitoneal liposarcoma. Contrast-enhanced coronal CT image of abdomen (CT radiation-therapy planning) shows a huge retroperitoneal liposarcoma resulting in anterior/cranial displacement of the right kidney towards the right anterior abdominal wall. This tumor mass contains multiple thick irregular septa with delayed contrast enhancement. Bilateral ureteral stent catheter; note the right catheter is visible outside the renal collecting system, ventral of the mass. CT-Protocol: Siemens-Somaris/5 3D Software version VA47C at 300 mAs and 120 kV, 3 mm slice thickness, contrast enhanced with 120 ml intravenous Omnipaque.

Click A 72 year old female patient with retroperitoneal liposarcoma. Coronal contrast-enhanced T1-weighted MRI demonstrating a huge retroperitoneal liposarcoma with heterogeneous enhancement. In this series vascular anatomy and patency are better depicted. Furthermore apparent demonstration of kidney cyst (Bosniak category I); right side. Protocol: Siemens Avanto 1.5Tesla magnet, T1 VIBE (volume interpolated breathhold examination) coronal, TR 3.85, TE 1.34, flip angle 10. Post contrast (20ml Magnevist?).

Click A 72 year old female patient with retroperitoneal liposarcoma. Coronal T2 W MRI of abdomen demonstrates huge retroperitoneal liposarcoma with heterogeneous hyperintense signal relative to muscle. (Protocol: Siemens Avanto 1.5Tesla magnet, T2 HASTE IR (half Fourier-acquired single shot turbo spin echo inversion recovery) coronal; TR 613, TE 46, IR 160, flip angle 180, , non contrast).