Retroperitoneal sarcoma

May Cause

Budd-Chiari syndrome

Displacement of pelvic ureter

Displacement of small bowel loops

Enlarged iliopsoas muscle

Extrinsic pressure deformity of bladder

Lower abdominal mass in a neonate or child

Obstruction of ureter

Pelvic mass in an infant or child

Renal parenchymal tumor

Retroperitoneal mass

Splenic vein obstruction

Upper abdominal mass in a neonate or child

Urothelial tumor