Table 5 FIGO and TNM stages for leiomyosarcomas and endometrial stromal sarcomas* of the uterus.
| FIGO/TNM stage | Definition | |
|---|---|---|
| * Tumors simultaneously present in the corpus uteri and the ovary/pelvis accompanied by ovarian/pelvic endometriosis must be classified as independent primary tumors. | ||
| I/T1 | Tumor limited to the uterus | |
| IA/T1a | Tumor 5 cm or less in greatest dimension | |
| IB/T1b | Tumor larger than 5 cm in greatest dimension | |
| II/T2 | Tumor extends beyond the uterus, within the pelvis | |
| IIA/T2a | Involvement of the adnexa (unilateral or bilateral) | |
| IIB/T2b | Tumor has spread to extrauterine pelvic tissue excluding the adnexa | |
| III/T3 | Tumor has infiltrated abdominal tissue | |
| N1 | IIIA/T3a | One site |
| IIIB/T3b | More than one site | |
| IIIC | Metastasis of pelvic and/or para-aortic lymph nodes | |
| IV/T4 | IVA/T4 | Tumor has infiltrated bladder and/or rectum |
| IVB | Distant metastasis | |