Cancer Concerns
Frederick R. Jelovsek MD
  
Abnormal uterine bleeding
and family history of uterine cancer
I have had abnormal bleeding on/off for the past 3 yrs. I've
mentioned it to my G.P., who brushed it off as stress ("If you were
40, I'd be concerned about uterine cancer"). I told her that my mom
had uterine cancer when she was 25.. she just shook her head. Recently,
it has been worse, mostly just spotting during the month. Besides my
mom, her 2 sisters have also had uterine cancer, and just recently, my
grandmother has been diagnosed (she is 65, hasn't had a pap in 25 yrs).
I'm somewhat nervous (okay, scared), at facing the possibility that I
could also be afflicted with this disease. I guess I just need a friend!
:)
Three years is a long time to have abnormal uterine bleeding and not
have a diagnosis or treatment. You are right to be concerned just on
that basis. How abnormal is the bleeding? What is its pattern?
Uterine cancer can be endometrial (the lining of the uterus),
cervical (abnormal paps etc.) or rarely the muscle of the uterus. Did
everyone in the family have endometrial cancer (not cervical cancer)
that you know of? There are some genetic tendencies toward early
endometrial cancer.
While usually endometrial biopsies or D&Cs are not done to rule
out cancer at ages less than 35 or 40, that only applies to initial
presentations of abnormal bleeding. If bleeding persists after
attempts at hormonal therapy it still needs to be evaluated, including
possibly an endometrial biopsy even at age 25. There are very few
drugs or medications known to prevent any cancer but birth control
pills have definitely been shown to prevent endometrial cancer if
taken over a long period of time.
   
Use of Clomid and risk
of ovarian cancer
I'm 39, mother of 2 adopted children (ie: never been pregnant) and
took 9 months of Clomid in 1988. I'm scared. My Dr. recommends an annual
screening for ovarian cancer by vaginal probe ultrasound and blood
work... is that enough? He says I'm too young to arbitrarily remove my
ovaries. Any advice?
There does appear to be an increase in the lifetime risk of ovarian
cancer in women who had long term use of Clomid for ovulation
induction. That risk is a doubling of a 1 in 70 lifetime risk. I
enclosed an abstract below that studied many infertility patients.
Those authors feel that using Clomid less than 12 cycles does not
increase your risk.
Ovarian tumors in a cohort of infertile women.
Rossing MA, Daling JR, Weiss NS, Moore DE, Self SG
N Engl J Med 1994 Sep 22;331(12):771-776
BACKGROUND. Case reports and the results of a recent
case-control study have raised questions about the potential
neoplastic effects of medications used as treatment for infertility.
METHODS. We examined the risk of ovarian tumors in a cohort
of 3837 women evaluated for infertility between 1974 and 1985 in
Seattle. Computer linkage with a population-based tumor registry was
used to identify women in whom tumors were diagnosed before January 1,
1992. Data on infertility testing and treatment were abstracted from
the medical records of women who had ovarian cancer and those of a
randomly selected comparison group. The risk of ovarian tumors
associated with exposure to ovulation- inducing medications was
assessed through an age-standardized comparison with the rate of
ovarian tumors in the general population, and Cox regression analysis
was used to compare the risk of cancer among women who received these
medications with the risk among infertile women who did not receive
them.
RESULTS.There were 11 invasive or borderline malignant
ovarian tumors, as compared with an expected number of 4.4
(standardized incidence ratio, 2.5; 95 percent confidence interval,
1.3 to 4.5). Nine of the women in whom ovarian tumors developed had
taken clomiphene; the adjusted relative risk among these women, as
compared with that among infertile women who had not taken this drug,
was 2.3 (95 percent confidence interval, 0.5 to 11.4). Five of the
nine women had taken the drug during 12 or more monthly cycles. This
period of treatment was associated with an increased risk of ovarian
tumors among both women with ovarian abnormalities and those without
apparent abnormalities (relative risk, 11.1; 95 percent confidence
interval, 1.5 to 82.3), whereas treatment with the drug for less than
one year was not associated with an increased risk.
CONCLUSIONS. Prolonged use of clomiphene may increase the
risk of a borderline or invasive ovarian tumor.
   
What are symptoms of ovarian cancer?
There are no symptoms at all for early ovarian cancer (Stage I and
II), because it is a slow growing process and doesn't cause pain.
Advanced cancers have symptoms, however, usually including abdominal
fullness and feeling full and not hungry all of the time. Increasing
abdominal girth can also be a late sign because of fluid in the
abdominal cavity.
I can't give you an exact number on that in the 30's, it would
probably be in the order of less than 1 in a thousand. It goes up in
later ages but the cumulative lifetime incidence is 1 in 70 women.
   
Abdominal bloating, could it be ovarian cancer?
Abdominal bloating can be a sign of ovarian cancer but it is
always very slow in onset (over many months) and rarely causes
pain and cramps until very late in the disease. Ovarian cancer is
usually a disease of the 50s and 60s. I doubt you have ovarian
cancer and would bet against it.
Ovarian cysts, endometriosis, fibroids, adenomyosis and infection
would be possible. How frequently are you having to pass urine?
Does it burn? Do you get up at night to void? Does pain get worse
or better with bowel movement or voiding. Are you on anything for
birth control. When was your last pelvic exam? Was it normal?
The symptoms you describe can be consistent with large fibroids
or ovarian cysts. Your doctor will check out the urine for
infection just to be sure. Probably an ultrasound will be done.
If the ultrasound is normal, that is against ovarian cancer.
The fact that this pain is aggravated by bowel movements goes
along with a diagnosis of irritable bowel syndrome. If all your
other studies are normal, you may ask you doctor to refer you to
a medical gastrointestinal specialist. Irritable bowel is usually
treated with dietary change and occasionally medications.
   
Birth control pills and
ovarian cancer prevention
Longtime pill use (over 10 years) is associated with a decreased
incidence of ovarian cancer just as having 5 children is also
associated with a decrease. See:
Risk of ovarian
cancer
This is probably because the less the ovary is allowed to ovulate,
the less it is exposed to cancer causing agents. If that's true (we
are not certain it is), then Depoprovera use, nursing your children
for long periods of time and any diseases or stress that makes a woman
anovulatory would also decrease the lifetime incidence of ovarian
cancer.
I don't have any complaints, just a paranoia about cancer.
What in your experience makes you worry more about this than say
colon cancer?
Gosh, I don't know. I guess I've never looked at it that way.
Thanks for the information.
   
Vaginal bleeding 5 years after cervical cancer therapy
I know your friend is concerned about the possible recurrence of
cancer as the cause of the bleeding. Since that took place 5
years ago, it is much less likely to be a cancer recurrence than
it is a vaginal tear or abrasion. You are right to consider
mostly bleeding due to trauma with sexual relations because she
has risk factors for atrophic vaginitis. The radiation therapy
decreases vaginal and pelvic blood supply which in turn makes the
skin lining the vagina quite thin. Actually it can be more of a
problem farther away from the time of the actual radiation
therapy, i.e., it is a late occurrence complication.
Not taking the estrogen replacement therapy is also a risk
factor since she is probably menopausal from the radiation
therapy. Frequent sexual relations can thicken the vaginal skin
lining and make it resistant to bleeding but when you combine
that with a history of radiation therapy, the epithelium (skin)
may just be too thin to resist abrasion and then secondary
infection. Your friend's oncologist may have to do a biopsy and
other studies just to be sure there is no cancer recurrence, but
afterwards, have your friend discuss getting estrogen treatment
directly to the vagina with some of the new estrogen devices.
   
Are there similarities between colon and ovarian cancer?
Ovarian cancer has been described in association with three
autosomal dominant syndromes: familial site-specific ovarian
cancer, familial breast and ovarian cancer, and the hereditary
nonpolyposis colon cancer syndrome. If your sister does not have
this type of colon cancer I am not aware of any connection.
   
Numbness 2 years after ovarian cancer surgery
Assuming the meralgia paresthetica is on the left where the cyst
is, it is possible that the cyst is causing the pain. It may be
by direct pressure on the lateral femoral cutaneous nerve but it
more likely to be a referred pain because the ovary is innervated
by some of the same nerve roots as is the lateral femoral
cutaneous nerve.
In a way. Pain can go up one set of nerve fibers, e.g., from the
ovary) to the spinal cord (lumbar area) and then down another
nerve, e.g. lateral femoral cutaneous nerve. This is called
referred pain because you perceive it from one area when actually
it originates in another. Remember also that you can have direct
pressure on the nerve from anything in the pelvis.
Did the pain and numbness first start before or after any of your
surgeries?
Ultrasound can diagnose cysts of the ovary but I thought you
already had that to diagnose the cyst in the first place. I know
you are concerned about possible recurrence of cancer. It's
unlikely that the new numbness is related to cancer. After an
ultrasound and possibly a CAT scan, the next step is to look
surgically. There can be adhesions that are causing this.
   
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