September has been unofficially designated as Prostate Cancer
Awareness (PCA) Month and the week of September 15-22, 2002
has been set aside as Prostate Cancer Screening Week by many
major hospitals, where free blood tests and prostate examinations
will be provided by experienced Urologists. In view of this
major
health event, I am resubmitting a prior TG Forum article detailing
why it is important to attend these screenings. If you take
into
account that about 200,000 new cases of Prostate Cancer will
be
diagnosed in the USA this year and approximately 32,000 people
will die this year from advanced Prostate Cancer, making it
the
second most lethal organ cancer next to Lung Cancer, you may
understand why you should take this seriously. The following
article details the relationship of the TG Community to PCA.
We are surely familiar with the acronyms HRT for hormonal
replacement therapy and SRS for sex reassignment surgery, but
not as familiar with the acronym PSA, Prostate Specific Antigen.
But if you are over 40 years of age and carry a Y-chromosome
as
in a genetic male, you should be aware of your PSA even though
you may have undergone HRT and SRS. Bob Dole can thank his
lucky star that he knew his PSA early enough to save his life
and
become a spokesperson for ED, erectile dysfunction, and Viagra.
PSA is a protein produced by all prostate tissue, benign and
malignant, and generally increases in the bloodstream with age.
The prostate is a small accessory sex organ which surrounds
the
urinary channel, the urethra, and resides just outside the bladder.
It functions primarily as a conduit providing essential life
sustaining chemicals for sperm as they leave the body. So who
needs it you say. Well certainly no one who has undergone MTF
SRS. But the point is that to remove the prostate requires
extensive surgery, which is not done at the time of SRS.
Therefore we must the deal with the implications of having this
organ for the rest of our lives whether we have had SRS, HRT
or
no medical intervention.
The prostate begins as a small walnut-size organ that increases
in
size with the onset of puberty and continues to grow under the
influence of testosterone (T) and its metabolite
dihydrotestosterone(DHT). This growth pattern may be
accelerated by the use of exogenous T and anabolic steroids
as
used by Mark Maguire and other athletes. Conversely the prostate
will shrink with the use of exogenous estrogens and their
metabolites in the HRT population. In the absence of either
therapy, the central portion of the gland will grow in
approximately 80% of males to where there is some restriction
in
urinary flow after the age of 50. This condition, benign prostatic
hypertrophy (BPH) has been reported in MTF transsexuals,
occasionally requiring surgery, after a trial of alpha blockers,
which may improve urinary flow. PSA will increase slowly from
year to year with BPH and decrease to approximately one-third
of
normal with maximum HRT. But it is essential that a baseline
PSA number be established for annual comparisons.
From age 20, the prostate can make itself known to us as a
reservoir for bacterial infection. Acute prostatitis brings
symptoms of urinary frequency, burning and urgency as a bladder
infection would manifest itself in a woman. There may also be
fever and discomfort in the perineum, where we sit. While acute
prostatitis occurs in about 20% of men, this condition will
become more frequent after the urethra is shortened at the time
of
SRS. Acute and chronic prostatitis is usually amenable to
antibiotic therapy, but can become an unrelenting problem for
some. Since typical bacterial and chlamydial organisms can rarely
be recovered from the prostate or urethra in chronic prostatitis,
the exact cause of this problem remains unknown. Because PSA
becomes markedly elevated with the onset of prostatitis, blood
levels should not be determined until 2 months following the
cessation of symptoms.
The more insidious growth of prostate cancer (PCA) has made it
the most common cancer in the U.S. male population and the
second most deadly. One of the proven therapies for PCA has
been the introduction of total androgen blockade either by
castration or the introduction of female hormones to induce
both
pituitary and testicular blockade of T and DHT production. So
you would think that a MTF transsexual (TS) would be protected,
but that does not seem to be the case. It appears that the salutary
effects of this hormonal manipulation last only 3-5 years, before
hormonally resistant PCA reappears and resumes its prior growth
rate. PCA has been reported in TS's years after the initiation
of
feminizing hormones. It has been the feeling of medical
researchers, that by extrapolation of known prostatic cancer
growth factors, the cancer requires approximately 10 to 15 years
to become clinically manifest. So here is where knowing your
PSA can save your life. If you start early and continue annually
to
follow your PSA, you can usually predict the early growth of
PCA before it becomes too late to cure. The test is good and
many refinements have been made in the past 10 years, but it
is
not perfect. A normal range of 0 - 4.0 has been established
for the
population under the age of 65. This range is then age-adjusted
and has an accepted annual increase of seventy-five/one
hundredths, .75 per year. A lower normal range has been
established for the black population as there appears to be
a
higher incidence of PCA becoming clinically manifest at an
earlier age. It is the recommendation of the American Cancer
Society (ACS) that annual PSAs be drawn annually beginning
at
age 50 and beginning at age 40 in the black population or anyone
with a family history of PCA on either his mother or father's
side.
This is because a PCA dominant gene has been identified in a
small but distinct group of PCA patients. The ACS also
recommends an annual rectal exam at the time of your PSA in
order to detect any hard prostatic nodules, that might not be
evident from your PSA result. Sorry, but I said "Not Perfect."
It
appears that approximately 20% of all detected PCA will have
a
PSA in the normal range. This is still a high number, but newer
and more sensitive PSA tests as Free PSA have been introduced
to reduce this number. Secondly Prostate Specific Antigen does
not seem to be as organ specific as earlier thought. It appears
that
this protein has been detected in approximately 30% of all female
breast cancers, in the testicular tissue of MTF's and in the
breast
tissue of FTM transsexuals treated with androgens. As you can
see this a new book, whose chapters are being written daily,
but
your PSA can afford insight into a disease, PCA, which can be
cured in over 90% of the cases that are detected early.
Best Wishes in Your New Future,
Cerise Richards, M.D.