Radiation Oncology/Uterine Sarcoma/Staging

Uterine Sarcomas

Current Staging
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 &le; 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)