Radiation Oncology/Uterine Sarcoma/Staging

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Uterine Sarcomas

Current Staging[edit]

AJCC 7th Edition (2009)

Corresponds to the updated FIGO staging (2009)
FIGO 2009 PMID 19135669 -- "FIGO staging for uterine sarcomas."
Note: This is a new staging classification for uterine sarcomas. Previously they were staged according to the system in use for other cancers of the uterine corpus (see: Endometrial staging)
Includes: leiomyosarcoma, endometrial stromal sarcoma, adenosarcoma
Carcinosarcoma (MMMT) should be staged as carcinoma


Leiomyosarcoma and Endometrial Stromal Sarcoma
Primary Tumor:

  • T1 (I) - limited to the uterus
    • T1a (IA) - 5 cm or less
    • T1b (IB) - more than 5 cm
  • T2 (II) - extends beyond uterus but within the pelvis
    • T2a (IIA) - involves adnexa
    • T2b (IIB) - involves other pelvic tissues
  • T3 (III) - tumor infiltrates abdominal tissues (must infilitrate the tissues and not just protrude into the abdominal cavity)
    • T3a (IIIA) - one site
    • T3b (IIIB) - more than one site
  • T4 (IVA) - invades bladder or rectum


Adenosarcoma
Primary Tumor:

  • T1 (I) - limited to the uterus
    • T1a (IA) - limited to the endometrium/endocervix
    • T1b (IB) - invades ≤ 1/2 of the myometrium
    • T1c (IC) - invades more than 1/2 of the myometrium
  • T2 (II) - extends beyond uterus but within the pelvis
    • T2a (IIA) - involves adnexa
    • T2b (IIB) - involves other pelvic tissues
  • T3 (III) - tumor infiltrates abdominal tissues (must infilitrate the tissues and not just protrude into the abdominal cavity)
    • T3a (IIIA) - one site
    • T3b (IIIB) - more than one site
  • T4 (IVA) - invades bladder or rectum


For All Sites
Regional Lymph Nodes: pelvic or para-aortic

  • N0 - no
  • N1 (IIIC) - yes

Distant Metastases:

  • M0 - none
  • M1 (IVB) - yes

Stage Grouping:

  • Corresponds to FIGO stage (given above in parentheses)