Endometrial Cancer

image
What is the Uterus?
How does Endometrial Cancer present?
How is Uterine Cancer detected?
What are staging and grading?
How is Endometrial Cancer treated?
What are the side effects of treatment for Endometrial Cancer?
Which types of drugs and their different dosages decide the side effects of chemotherapy?
What is the importance of followup care?
What are the possible causes of Endometrial Cancer and how can Endometrial Cancer be prevented?
image
  Previous

 

 

 

 

 

 

 

 

 

 

What is the Uterus?
image
The Uterus is located in a woman's lower abdomen, between the rectum behind and the urinary bladder in front. It is a hollow, pear-shaped organ to which on each side are attached, the fallopian tubes, which connect it to the ovaries. The broad middle part of the Uterus is known as the corpus or the body, the top portion which is dome shaped is known as the fundus, and the inferior most narrow portion is known as the cervix. The Uterus has an inner lining called the endometrium and the outer layer is made of muscle and is called myometrium.
The Uterus, Ovaries, and The Fallopian Tubes (Front and side view)
The Uterus, Ovaries and The Fallopian Tubes (Front and side view)
image
Top   Next

 

 

 

 

 

 

 

 

How does Endometrial Cancer present?

image
Side view of the cut section of the Vagina with the Uterus on top.
Side view of the cut section of the Vagina with the Uterus on top.
Endometrial Cancer is that cancer which develops in the inner lining of the uterine cavity, otherwise known as the endometrium.

It is important that a woman sees a clinician if any of the following symptoms present:
Unusual vaginal bleeding or discharge. This may be initially a watery, blood streaked flow, but generally the content of blood keeps on increasing. It usually occurs after menopause, but sometimes can occur even before menopause. Any kind of abnormal bleeding which presents in a woman should be checked by a doctor and not ignored.
Pain during intercourse.
Unusually painful or difficult urination.
Pain in the pelvic area or low-back pain.

image
Top   Previous Next

 

 

 

 

 

 

 

How is uterine cancer detected?

image
There are several steps to establishing the presence of an Endometrial Cancer:
The doctor takes a history of the patient's symptoms.
The doctor examines the patient physically, including an internal examination, in which the patient is examined rectally and vaginally in order to check whether a mass is present is palpable.

During this examination, the doctor may also perform a Papanicolaou smear or a Pap test in which the doctor uses a wooden scraper or spatula to collect a sample of cells from the cervix and the upper vagina. This is completely painless. The doctor prepares a slide from this smear taken and sends it for pathological examination to look for abnormal changes. Since uterine cancer actually begins inside the Uterus, it is highly likely that the Pap smear may show nothing, because the highest point that the spatula can reach is the uterine cervix.

To confirm the diagnosis, the doctor needs to perform a biopsy, which is the removal of a small piece of tissue from inside the Uterus. This is usually done on an outpatient basis, in which the patient undergoes a D & C or a dilatation and curettage and it is done under sedation or general anesthesia.

During a D & C, the cervix is widened and the doctor introduces an instrument into the Uterus and scrapes the lining to obtain samples for the pathologist, who then checks it for cancer cells.

For a few days after D & C, the patient may have abnormal bleeding or cramps but this is perfectly okay.

image
Top   Previous Next

 

 

 

 

 

 

 

What are staging and grading?

image
These are terms with which you must become familiar, if you are dealing with any form of cancer.

When we stage a cancer, we try to establish carefully, the degree of spread of the cancer and if indeed there is spread, to what extent and involving which organs.

The grading of a cancer is a microscopic issue, in which the pathologist lets you know how aggressive this particular type of cancer is; well differentiated means less aggressive, moderately differentiated intermediately aggressive, and poorly differentiated more aggressive.

Both grading and staging help your clinician to establish the prognosis or how serious your disease is, and what is going to be the likely outcome

Staging may require additional imaging tests such as CT scan, MRI, sonography, IVU, bone scan, or chest x-ray.

image
Top   Previous Next

 

 

 

 

 

 

 

How is Endometrial Cancer treated?

image
A lot depends on the patient's constitution, the grade of her disease, and its staging. Patients are usually treated by a team of specialists, which utilizes a multipronged approach. This includes a gynecologist, a surgical oncologist, and a radiotherapist. The plan of treatment is tailored to fit a patient's requirements. If necessary, chemotherapy or hormonal therapy may become add-ons.

Treatment strategies

The bastion of Endometrial Cancer treatment is surgery. Many patients with Endometrial Cancer are treated with surgery. Some have radiotherapy too. A lesser number of women may be treated with hormonal therapy or chemotherapy.

Hysterectomy is the surgical removal of the Uterus and the ovaries and the fallopian tubes (bilateral salpingo-oophorectomy). This treatment is sometimes given the short form of TAH plus BSO, which stands for total abdominal hysterectomy plus bilateral salpingo-oophorectomy.

Lymph nodes adjacent to the tumor may also be excised during surgery, in case there is evidence that they contain cancer. There is a high probability of the cancer having spread to distant areas, if the lymph nodes prove to be positive for cancer cells. In case, the disease has spread beyond the inner lining of the Uterus, then the disease cannot be cured with surgery alone.

The alternative local therapy to surgery is radiation therapy. This involves the use of high energy, penetrative rays to destroy cancer cells. It also affects cancer cells only in the zone treated. Radiation therapy is also employed for palliation, that is, control of symptoms alone in an advanced Endometrial Cancer.

Radiation therapy can also be used in adjunct to surgery or chemotherapy, either before or after.

Teletherapy or external radiation is given via a machine remote from the body, while brachytherapy or internal radiation is given by implanting a radioactive source within the uterine cavity. Patient may or may not require both modalities of radiation.

Radiation therapy, after initial planning, usually takes just 5 to 10 minutes per day, 5 days a week for about 6 weeks. This time period is flexible depending upon the modality of radiation used.

However, if the patient is being subjected to internal radiation or brachytherapy, then the patient needs to be hospitalized for that short period of time while the source is in place. It is also mandatory that while the radioactive source is in place, the patient receives no relatives, because there is a very small chance of the radioactive source leaking radiation to affect the relatives.

Besides local therapy, the best attempt to control cancer cells circulating in the body and lodged at places other than the uterine cavity is by using systemic therapy (therapy which affects the entire systems of the body), which is in the form of injections or oral drugs. This form of treatment is called chemotherapy.

This treatment is given in a cyclical manner (each set of drugs is repeated usually after every 3 to 4 weeks). Chemotherapy can also be used in combination with surgery, radiotherapy, or both, either before or after.

Management of Endometrial Cancer also employs another form of systemic treatment called hormonal therapy, in which drugs such as progesterone, which is a hormone, are used to either prevent cancer cells from getting, or using the hormones they need to propagate. These medicines are usually taken by mouth, and enter the blood stream to travel through the body, and try to control cancer cells outside the uterine cavity. Those patients, who are unable to undergo surgery, and, also, those patients who have got metastatic or recurrent Endometrial Cancer, are often recommended this kind of treatment.

image
Top   Previous Next

 

 

 

 

 

 

 

What are the side effects of treatment for Endometrial Cancer?

image
Unfortunately, the various modalities, which are employed for treating Endometrial Cancer, are not without their side effects. The severity and the quality of these side effects depends largely upon the type of modality of treatment employed, and also the general condition of the patient during and before the treatment. Doctors and nurses play a very important role in explaining to the patient the side effects and the symptoms associated with the same during therapy. It is important that the patient and her relatives ask the doctor about the side effects of treatment, before the treatment is constituted.

After surgery, the common side effects which a woman feels, include those which are due to anesthesia, and those which are due to the surgery per se.

The effects of anesthesia include a soreness in the throat or hoarseness, and a drowsiness if general anesthesia has been given. There also could be a temporary limitation of physical activity.

The surgery has the following common complications- nausea and vomiting, and some time before the woman regains normal bladder and bowel function.

Women should be prepared for the fact that, after the hysterectomy, they will no longer have any menstrual periods. After the ovaries have been surgically ablated, there is immediate menopause, and this menopause is called surgical menopause.

All the symptoms of postmenopausal problems could be associated even with surgical menopause, and these include hot flashes and other common symptoms. While in the general population, after a normal menopause, hormone replacement therapy is commonly employed, hormone replacement therapy, or HRT as it is known as, is usually not given to patients of Endometrial Cancer, for the simple reason that the common drug which is used in HRT, estrogen, may have a stimulative effect on the development or recurrence of the uterine cancer. Although there is no scientific evidence of the same, the patients are usually not recommended hormone replacement therapy.

Research studies are in progress to determine whether the difficult problems associated with postmenopausal phase of hysterectomy can be safely treated with estrogen.

It is important to inform the patient that sexual activity, desire, and sexual intercourse are usually not affected by hysterectomy.

The commonest side effects associated with radiation therapy depend largely upon the part of the body radiated, and the dosage of the treatment, including the size of each fraction of radiotherapy.

The commonest symptom is extreme fatigue, and, therefore, often patients are requested to rest. One of the common symptoms, which are seen after radiotherapy, is dry, reddened skin, and loss of appendages of the skin such as hair, from the area radiated.

There is also a decrease in the white blood cell count that has got an immunoprotective effect against infections.
Treatment may result in diarrhea, often intractable diarrhea, and difficulty in urination.
Women sometimes complain of dryness, itching, tightening, and burning in the vagina, and may be advised not to have intercourse during treatment because they usually find it very painful; most, however, can resume sexual activity as soon as treatment ends, or a few weeks thereafter.
Sometimes, there is a postradiational narrowing of the vaginal canal, and women can be taught to use a lubricant or a dilator to help minimize these problems.

As far as hormone therapy is concerned, patients on progesterone experience changes in appetite and weight, and they may find that they gain a little weight due to fluid retention, which occurs with consumption of progesterone. Fatigue is also a common symptom in these patients. All those patients who are premenopausal may experience a total change in the way their menstrual cycles occur.

If these problems become out of control, the patients should approach their clinician to alleviate the same.

image
Top   Previous Next

 

 

 

 

 

 

 

Which types of drugs and their different dosages decide the side effects of chemotherapy?

image
One must realize that chemotherapy affects all rapidly dividing tissues, and, therefore, not only the cancer cells, but also those cells of the body which are normal but divide rapidly, are affected the most. These would include cells in the hair roots, cells lining the intestinal gut and the digestive tract, and the red blood cells, which carry oxygen, or the white blood cells, which fight infection; all these cells are affected.

Such patients are likely to develop diarrhea, baldness, nausea and vomiting, infections, failure in blood clotting, or anemia.

All these problems usually disappear gradually after the treatment is over. The clinician usually takes care that these symptoms do not go out of control while the chemotherapy is in progress.

image
Top   Previous Next

 

 

 

 

 

 

 

What is the importance of followup care?

image
For any type of cancer, it is mandatory that the patient follows up regularly in order to check whether the cancer has come back or not. One must always realize that the primary treatment of cancer does not mean that the cancer is cured, but that it has been temporarily alleviated. Cancers have a notorious proclivity of recurring, and this can only be stopped or detected if routine checks are performed. Routine checks include visits at the time allotted by the doctor after periods fixed by the doctor and, usually, such visits comprise of a detailed history, an internal examination, a chest x-ray, ultrasonography, and certain blood laboratory tests.

image
Top   Previous Next

 

 

 

 

 

 

 

 

What are the possible causes of Endometrial Cancer and how can Endometrial Cancer be prevented?

image
The following are some of the known risk factors for acquiring Endometrial Cancer:

Estrogen replacement therapy. Women who use estrogen replacement therapy for various reasons, including alleviation of symptoms from menopause, prevention of thinning of bones or osteoporosis, or reduction in the risk of heart disease or stroke, may have an increased risk of uterine cancer. Long-term treatment and larger doses of estrogen increase the chances of getting Endometrial Cancer. If estrogen is used alone, then the chances of acquiring Endometrial Cancer are more, than using combinations of estrogen and progesterone. Progesterone has got a protective effect against the cancer-causing effects of estrogen. Regular followup visits with a health professional while the patient is on hormone replacement therapy is mandatory to check and detect the early symptoms and signs of uterine cancer.

Being overweight is another reason put forth by clinicians for developing uterine cancer. It is noticed that obese women have almost twice the number of chances of developing uterine cancer than women of normal weight. The possible cause and effect relationship is because fat women usually have higher estrogen levels.

Diabetes and high blood pressure have also been associated with patients of uterine cancer, although no direct cause and effect relationship has been established. It is possible that because quite a few diabetic patients also have high body fat and estrogen levels. Therefore, the risk of uterine cancer could be higher in such patients.Definitely, if the woman has had a previous history of other types of cancers, such as breast cancer or colorectal cancer, then she has a higher chance of developing uterine cancer as a second cancer. Such patients should always go for thorough checkups during their followup routines.

Tamoxifen is an antiestrogen drug, which is used in the treatment of breast cancer. Because the drug has an estrogen-like effect on the Uterus, it has been stated that tamoxifen could be a causative factor in developing uterine cancer, however, it is important for the patient to note that the benefits of tamoxifen, as a treatment protocol for breast cancer, far outweighs the risk it portrays while considering it as a potential risk for uterine cancer.

And lastly, but not the least important,if the woman is over the age of 50 then she has a higher chance of developing cancer of the Uterus. Certain other minor points, which are believed to contribute to the risk for uterine cancer, are also estrogen related, e.g., having few or no children, or entering menopause very late in life.

Oral contraceptives, which use estrogen and progesterone as a combination, are believed to lower the risk of uterine cancer.

image
Top   Previous