Dr. M.J. Bazos, MD.
Patient Handout
OVARIAN
CANCER
About Your
Diagnosis
Ovarian cancer is a tumor of the female
reproductive organs called ovaries. The ovaries produce the female
hormones called estrogen and progesterone, which help regulate the
menstrual cycle and pregnancy. The ovaries release eggs monthly in preparation
for fertilization (when the sperm and egg unite). Nearly 27,000 cases of ovarian
cancer are diagnosed each year, and about 1 in 70 women has this cancer in her
lifetime. The cause of ovarian cancer is unknown, but there are certain risk
factors that increase one’s risk for ovarian cancer. The risks
include:
1. Family history. There is a 5%
risk if a close relative has the disease. The risk increases to 50% if two
family members have the disease.
2. Age. It
is uncommon for ovarian cancer to occur before 40 years of age, but the risk
increases with age, peaking in the 70s.
3.
Breast cancer. Women who have breast cancer are at high risk for ovarian
cancer.
4. Infertility, use of drugs to
induce fertility (drugs used before in vitro fertilization), frequent
miscarriages, and never being pregnant. Women who use birth control pills are
less likely to have ovarian cancer than those who do not use the pill. Ovarian
cancer is difficult to detect in its early stages. This is because the tumor
produces no symptoms in its initial stage to make the patient or physician aware
anything is wrong. There is no effective early screening method. During pelvic
examinations a physician attempts to feel for the ovaries and any abnormal
lumps. Even with this method early ovarian cancer usually goes undetected. A
Papanicolaou (Pap) smear is not reliable for ovarian cancer but is highly
reliable for cancer of the cervix. Transvaginal ultrasonography (examination
with an ultrasound probe placed in the vagina to look for ovarian tumors) has
been tried as a screening tool, but it gives many false-positive results. A
blood test to measure CA-125 (Cancer Antigen-125) has been tried as a screening
test, but again there are many false-positive results. Unless there is are risk
factors, screening is usually not performed on the general population. The best
way to diagnose ovarian cancer is to obtain tissue by means of a surgical
procedure and examine it with a microscope
(biopsy).
Living With Your
Diagnosis
In the early stages, ovarian
cancer produces no symptoms. As the cancer grows and spreads, you may have lower
abdominal discomfort, feel bloated and swollen, and have a loss of appetite. As
the tumor presses on nearby organs such as the bladder and intestine (bowel),
you may have frequent urination, constipation, and sometimes although not
frequently, vaginal bleeding. Ovarian cancer can also produce fluid in the
abdominal cavity
called
ascites.
Treatment
All
women with suspected ovarian cancer undergo an abdominal operation (laparotomy).
This allows the surgeon to diagnose and stage the disease. In the case of tumor
that has spread, the surgeon removes as much of the cancer as possible. This is
called debulking and reduces the amount of cancer to be treated with
chemotherapy or radiation therapy. Complications are pain, menopausal effects
such as hot flashes and vaginal dryness, and infection. Depending on the stage
of the disease (stage I, confined to the ovary; stage II, confined to the
pelvis; stage III, spread into the abdomen; stage IV, spread outside the
abdomen), the oncologist decides what chemotherapeutic drugs to use. Side
effects depend on the drug used, but nausea, vomiting, hair loss, easy bruising
and bleeding, and infections can occur. The use of radiation therapy depends on
the stage of the disease. Side effects include dry, itchy, red skin over the
treated area. Radiation treatment to the lower abdomen can cause nausea,
vomiting, diarrhea, pain with urination, vaginal dryness, and pain with
intercourse.
The
DOs
• Address symptoms with your
primary care physician, especially if you are at high
risk.
• Request second opinions about
all types of treatment (surgical, radiation, and chemotherapy) if you are not
sure what to do.
• Ask for pain
medications after surgical
treatment.
• Understand the
importance of nutrition after
treatment.
• Ask questions about
prognosis of the tumor, survival times, and recurrence of the
tumor.
The
DON’Ts
• Do not miss
follow-up appointments. When treatment is over, regular examinations are
performed to look for recurrence of the tumor. This includes the examination,
computed tomography (CT), and measurement of CA-125 in the blood. The blood
level is often high before surgical treatment and returns to normal afterward.
If CA-125 level begins to rise again, the cancer may have
recurred.
• Do not be afraid to ask
about emotional support groups.
When
to Call Your Doctor
• If you have
vaginal bleeding with abdominal swelling, bloating, or
pain.
• If you have fever with
chemotherapy.
• If you have drainage
from the wound site, fever, or pain after your
operation.
• If you have diarrhea,
urinary frequency, or vaginal pain after radiation.