Is chemo necessary for my 46-year-old sister’s uterine cancer?

Question

Hello doctor,

My sister is 46 years old and was diagnosed with endometrial cancer six weeks ago. The staging has been completed, and she has stage II disease, meaning the cancer has spread to the cervix but not beyond it.

She underwent a hysterectomy, and now her oncologist is discussing the addition of chemotherapy to her treatment plan. I would like to know whether chemotherapy is necessary for uterine cancer in a 46-year-old woman with stage II disease, or whether radiation therapy alone could be sufficient.

The pathology report shows grade 2 endometrioid adenocarcinoma with lymphovascular space invasion (LVSI) present. Her postoperative CA-125 level is 28 U/mL. She is otherwise generally healthy but has mild anemia, with a hemoglobin level of 10.8 g/dL.

She is very concerned about losing her hair and about the potential effects of chemotherapy on her heart, as she has mild mitral valve prolapse. The oncologist mentioned a regimen of Carboplatin and Paclitaxel for six cycles, along with radiation therapy.

She would like to know whether there is any way to determine with certainty that she needs chemotherapy, or whether it is being recommended as a precautionary measure to reduce the risk of recurrence.

Additionally, are there molecular tests, such as MMR (mismatch repair) or MSI (microsatellite instability) testing, in endometrial cancer that can help determine whether chemotherapy is likely to be beneficial in her specific situation?

Please advise.

Thank you.

Answer 1

Hello,

Welcome to icliniq.com.

I completely understand and appreciate the fear you are feeling regarding her condition.

However, her overall clinical condition suggests that Cisplatin may not be the most suitable option for her, and Carboplatin may be a better choice, particularly because her renal function may already be somewhat compromised, especially in the setting of diabetes.

Regarding the decision to proceed with postoperative chemoradiotherapy, this is very important because we are dealing with stage IV disease. Since the tumor has involved the cervix, there is a possibility that microscopic cancer cells may have entered the bloodstream or surrounding tissues, even though they cannot be detected with the naked eye or on routine imaging studies.

Chemotherapy is used as a systemic treatment to target these potentially hidden cancer cells throughout the body, while radiotherapy helps control any remaining disease in the local pelvic region. Together, these treatments are intended to reduce the risk of recurrence and further spread of the cancer after surgery.

I also want to reassure you that emotional support is extremely important during this stage. It is essential to help her understand that this treatment plays a significant role in managing the disease. Most chemotherapy-related side effects are temporary and generally improve after treatment is completed. Many patients gradually return to their baseline level of functioning once therapy has ended. Likewise, radiotherapy is often well tolerated, although side effects can vary depending on the treatment field and individual patient factors.

I hope this explanation is helpful.

If you have any further questions, I would be happy to help.

Thank you.