Q. What are the different stages of uterine cancer, and how is it staged?
Doctor Answer is medically reviewed by SecondMedic medical review team.
Uterine cancer is typically staged using the International Federation of Gynecology and Obstetrics (FIGO) system, which considers factors such as the size of the tumor, its invasion into nearby tissues, lymph node involvement, and whether it has spread to distant organs. The stages are categorized from stage I (early stage) to stage IV (advanced stage). The staging helps guide treatment decisions and provides information about the prognosis. Here is an overview of the different stages of uterine cancer:
1. Stage I:
- Stage IA: The cancer is limited to the inner lining of the uterus (endometrium).
- Stage IB: The cancer has invaded the inner half of the muscle wall of the uterus.
2. Stage II:
- Stage IIA: The cancer has invaded the outer half of the muscle wall of the uterus.
- Stage IIB: The cancer has invaded the cervix but has not spread beyond the uterus.
3. Stage III:
- Stage IIIA: The cancer has spread to the serosa (outer layer) of the uterus and/or the adnexa (fallopian tubes or ovaries).
- Stage IIIB: The cancer has invaded the vagina.
- Stage IIIC: The cancer has spread to pelvic lymph nodes.
4. Stage IV:
- Stage IVA: The cancer has invaded the bladder or rectum.
- Stage IVB: The cancer has spread to distant organs, such as the lungs or bones.
The staging process involves a combination of diagnostic tests, including imaging studies (CT scans, MRI, PET scans), biopsies, and surgical evaluation. The stage of uterine cancer is important for determining the appropriate treatment approach. Generally, early-stage uterine cancer (stages I and II) may be treated with surgery (hysterectomy and removal of surrounding tissues), while more advanced stages (III and IV) may require a combination of surgery, radiation therapy, and chemotherapy.
It's important to note that staging is a dynamic process, and the final stage may be determined after surgery and a thorough examination of the tissues. Staging helps oncologists tailor treatment plans to the specific characteristics and extent of the cancer, improving the chances of successful outcomes.
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