Aggressive Cancer

• Uterine leiomyosarcoma is believed to be a more aggressive cancer than carcinosarcomas but can be cured through surgery if the cancer is limited to the uterus.
  
  

Tumor Size

• One of the most important factors in determining the prognosis is the tumor size, according to the National Cancer Institute. A tumor bigger than five centimeters has a poor prognosis.
  
  

Diagnosis Timing

• For any uterine sarcoma, the prognosis is heavily dependent on what stage the disease is at when first diagnosed. The sooner the disease is caught, the better the prognosis.
  
  

Prognosis Stage 1

• The five-year survival rate for women who are diagnosed with stage 1 uterine leiomyosarcoma is 50 percent, according to the National Cancer Institute.
  
  

Other Prognoses

• For women at stages 2 to 4, the prognosis is significantly worse. It is 0 to 20 percent for the five-year survival rate.