Classification
Uterine sarcoma is staged like endometrial carcinoma at time of surgery using the FIGO cancer staging system.
- Stage IA: tumor is limited to the endometrium
- Stage IB: invasion of less than half the myometrium
- Stage IC: invasion of more than half the myometrium
- Stage IIA: endocervical glandular involvement only
- Stage IIB: cervical stromal invasion
- Stage IIIA: tumor invades serosa or adnexa, or malignant peritoneal cytology
- Stage IIIB: vaginal metastasis
- Stage IIIC: metastasis to pelvic or para-aortic lymph nodes
- Stage IVA: invasion of the bladder or bowel
- Stage IVB: distant metastasis, including intraabdominal or inguinal lymph nodes
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