Liposarcoma (LS), a type of soft tissue sarcoma, describes a group of lipomatous tumors of varying severity ranging from slow-growing to aggressive and metastatic. Liposarcomas are most often located in the lower extremities or retroperitoneum, but they can also occur in the upper extremities, neck, peritoneal cavity, spermatic cord, breast, vulva and axilla.

The presence of blood in the urine. Hematuria may be gross hematuria (visible to the naked eye) or microscopic hematuria (detected by dipstick or microscopic examination of the urine).