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The vagina is the passageway through which fluid passes out of the body during menstrual periods. It is also called the birth canal. The vagina connects the cervix (the opening of the womb, or uterus) and the vulva (the external genitalia).
Cancer of the vagina, a rare kind of cancer in women, is a disease in which malignant (cancer) cells are found in the tissues of the vagina. According to the American Cancer Society, about 2,680 cases of vaginal cancer will be diagnosed in the U.S. in 2012.
There are several types of cancer of the vagina. The two most common are:
- Squamous cell cancer (squamous carcinoma):
- Squamous carcinoma is most often found in women older than age 60, and accounts for about 70 percent of all vaginal cancers.
- Adenocarcinoma is more often found in women older than 50 and accounts for about 15 percent of all vaginal cancers.
- A rare form of cancer called clear cell adenocarcinoma results from the use of the drug DES (diethylstilbestrol) given to pregnant women between 1945 and 1970 to keep them from miscarrying. It occurs more often in daughters of the women who took DES.
Other, less common types of cancer that can be found in the vagina include:
- Malignant melanoma
- Cancers that begin in other organs (such as the cervix and rectum) spread to the vagina
A risk factor is anything that may increase a person's chance of developing a disease. It may be an activity, such as smoking, diet, family history, or many other things. Different diseases, including cancers, have different risk factors.
Although these factors can increase a person's risk, they do not necessarily cause the disease. Some people with one or more risk factors never develop cancer, while others develop cancer and have no known risk factors.
Knowing your risk factors to any disease can help to guide you into the appropriate actions, including changing behaviors and being clinically monitored for the disease.
The following have been suggested as risk factors for vaginal cancer:
- Age. Almost half of cases are in women age 70 or older.
- Exposure to diethylstilbestrol (DES) as a fetus (mother took DES during pregnancy)
- History of cervical cancer
- History of cervical precancerous conditions
- Human papillomavirus (HPV) infection
- HIV infection
- Vaginal adenosis
- Vaginal irritation
The following are the most common symptoms of vaginal cancer. However, each individual may experience symptoms differently. Symptoms may include:
- Bleeding or discharge not related to menstrual periods
- Difficult or painful urination
- Pain during intercourse
- Pain in the pelvic area
- A mass that can be felt
Even if a woman has had a hysterectomy, she still has a chance of developing vaginal cancer. The symptoms of vaginal cancer may resemble other conditions or medical problems. Consult a doctor for diagnosis.
There are several tests used to diagnose vaginal cancer, including:
- Pelvic examination of the vagina, and other organs in the pelvis. This is done to check for tumors, lumps, or masses
- Colposcopy. A procedure that uses an instrument with magnifying lenses, called a colposcope, to examine the cervix and vagina for abnormalities. If abnormal tissue is found, a biopsy is usually performed (this is called a colposcopic biopsy).
- Pap test (also called Pap smear). A test that involves microscopic examination of cells collected from the cervix, used to detect changes that may be cancer or may lead to cancer, and to diagnose noncancerous conditions, such as infection or inflammation.
- Computed tomography scan (CT or CAT scan). A diagnostic imaging procedure using a combination of X-rays and computer technology to produce horizontal, or axial, images (often called slices), of the body. A CT scan shows detailed images of the body, including the bones, muscles, fat, and organs. CT scans are more detailed than general X-rays.
- Magnetic resonance imaging (MRI). A diagnostic procedure that uses a combination of large magnets, radiofrequencies, and a computer to produce detailed images of organs and structures within the body.
- Positron emission tomography (PET) scan. Radioactive-tagged glucose (sugar) is injected into the bloodstream. Tissues that use the glucose more than most normal tissues (such as tumors) can be detected by a scanning machine. PET scans can be used to find small tumors or to check if treatment for a known tumor is working.
- Biopsy. A procedure in which tissue samples are removed from the vagina for examination under a microscope; to determine if cancer or other abnormal cells are present. The diagnosis of cancer is confirmed only by a biopsy.
Specific treatment for vaginal cancer will be determined by your doctor based on:
- Your overall health and medical history
- Extent of the disease
- Your tolerance for specific medications, procedures, or therapies
- Expectations for the course of the disease
- Your opinion or preference
Generally, there are three kinds of treatment available for patients with cancerous or precancerous conditions of the vagina:
- Surgery, including:
- Laser surgery to remove the cancer, including LEEP (loop electroexcision procedure)
- Local excision to remove the cancer
- Vaginectomy to remove all or part of the vagina
- Total hysterectomy
- Chemotherapy (topical)
- Radiation therapy
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Online Resources of Gynecological Health