Classification

Standard: FIGO classification (2009) of uterine sarcomas: Leiomyosarcomas, Sarcomas of the endometrial stroma

Stage I= Tumor limited to the uterine body
   - Stage I A: tumor limited to the uterus and < 5 cm - Stage I B: tumor limited to the uterus and > 5 cm
Stage II = Tumor extended to the pelvis
   - Stage II A: adnexal involvement
   - Stage II B: extension to extrauterine pelvic tissue
Stage III = Extended tumor in the abdomen
       - Stage III A: abdominal extension on 1 single site
       - Stage III B: abdominal extension more than 1 site
      - Stage III C: pelvic and/or lumbo-aortic lymph node metastasis
Stage IV = Localization or Distant Metastasis
       - Stage IV A: extension to the bladder and/or rectum
       - Stage IV B: distant metastasis including extra abdominal lymph nodes including inguinal lymph nodes.

Standard: FIGO classification (2009) of uterine sarcomas: Adenosarcomas

Stage I = Tumor limited to the uterine body
     - Stage I A: tumor limited to the endometrial mucosa or the endocervix - Stage I B: damage to the myometrium < 1⁄2 internal
      - Stage I C: damage to the internal myometrium ≥ 1⁄2 RRC_GYN_SarcUterin_MAJ February 2011 6
Stage II = Tumor extended to the pelvis
      - Stage II A: adnexal involvement
      - Stage II B: extension to extrauterine pelvic tissue
Stage III = Extended tumor in the abdomen
      - Stage III A: abdominal extension on 1 single site
      - Stage III B: abdominal extension more than 1 site
      - Stage III C: pelvic and/or lumbo-aortic lymph node metastasis
Stage IV = Localization or Distant Metastasis
      - Stage IV A: extension to the bladder and/or rectum
      - Stage IV B: distant metastasis including the extra abdominal lymph nodes including the inguinal lymph nodes.