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Hereditary Breast and
Ovarian Cancer
by Yael Rosenberg, RN
Description
Hereditary breast and ovarian cancers are those associated with
specific inherited gene mutations. BRCA1 and BRCA2 gene mutations
inherited from a parent increase the risk of developing cancers.
They tend to cluster in families, and are often seen to occur
earlier in life than other non-inherited cancers.
BRCA1 and BRCA2 mutations are inherited in autosomal dominant
pattern, which means that only one copy in each cell increases the
risk of the individual inheriting this mutation to develop cancer.
However, it is only when both copies of the BRCA gene mutate that
the cancer develops. Therefore the susceptibility of an individual
who inherits a mutated gene is greater, since only one gene has to
mutate during their lifetime for cancer to develop.
BRCA1 and BRCA 2 are considered in the class of genes known as
Tumor Suppressor Genes. In normal cells these genes help stabilize
the cells DNA and assist in preventing uncontrolled cell growth.
Mutations in these genes increase the chance of hereditary cancer.
In the Jewish Ashkenazi population, three distinct mutations have
been found to be involved with greater frequency. These include two
mutations in BRCA1 and one in BRCA2.
The average age of an individual diagnosed with BRCA mutation-
cancer is 50 years old.
Symptoms
Symptoms of Breast
Cancer
Symptoms of Ovarian
Cancer
Symptoms of Breast Cancer
In the early stages of breast cancer, the growing tumors are not
palpable or painful. Masses in the breast are palpable once they
reach a certain size but are often still painless. Certain tumors
cause visible changes in the breast and nipple.
The following are common symptoms associated with breast cancer:
Cancerous Lumps
A distinct, stony, hard lump that feels like a
hardened pea or bean in the breast
Immobile mass that does not move freely in the breast
Lump anchored in surrounding tissues; tissues move
when the lump is moved
Lumps are non-painful 90 percent of the time
Usually occurs as only one lump in one breast. Very
rarely will breast cancer appear as several lumps
Nipple Changes
A nipple that inverts in a previously normal
breast.
Scaly nipple
Painful nipple
Areola
Color of the circle around the nipple changes.
Skin changes
A rash on one breast, redness, a bump or sore,
skin might look blotchy
Skin that looks like an orange peel
Skin dimpling - pulling of the skin
Bulging of the skin - a swelling of one area of the
breast that changes the shape of the breast.
Vein changes
An increase in the size or number of veins on one
side of the chest
Breast pain
All recurring breast pain needs evaluation to
determine cause.
Most breast pain is not associated with cancer;
rather it is caused by monthly female hormones during the menstrual
cycle.
Breast discharge
Though it may be due to hormonal imbalances, a
response to medication, it may also be caused cancer and should be
evaluated.
Breast Size
Increased in breast size that is not related to
menstrual cycle.
Symptoms of Ovarian Cancer
The symptoms presented with Ovarian Cancer are not specific and are
often confused with other diseases that have similar symptoms such
as gastrointestinal or genitourinary disorders. Symptoms of ovarian
cancer tend to be persistent and progressively worsening.
Some of the symptoms include:
Abdominal distention
Pressure or pain in abdomen, pelvis, legs and back
Abnormal menstrual cycle
Constant nausea, indigestion and gas
Alteration in bowel function Constipation or
Diarrhea
Alteration in urinary habits such as frequency
Loss of appetite and quick satiation
Incessant feeling of fatigue and lack of energy
Weight gain or loss
Incidence and Carrierss
Approximately 7-10% of breast and ovarian cancers are
hereditary.
Currently it is estimated that the three mutations associated with
the Jewish Ashkenazi population may be responsible for approximately
one third of the breast cancer occurrences in women under the age of
40 in that population.
The carrier incidence for the three mutations found in the Jewish
Ashkenazi population is 1 to 40 or 2.5%, the frequency of carrying
the BRCA mutation being five times higher than the general
population. The carrier frequency or BRCA1 mutations for the general
population is currently estimated to be approximately 1:500 to 1:800
with BRCA2 at a lower frequency.
The lifetime risk for a woman who carries the BRCA mutation for
breast cancer is 55-85% and 20-40% for ovarian cancer. Compared to
that, overall there is a 12% risk of breast cancer and 1% risk of
ovarian cancer in the general population.
Men that that carry the BRCA2 mutation have a 6% risk of developing
breast cancer, a relatively rare form of cancer for men.
The probability that breast or ovarian cancer is related to a
deleterious BRCA 1/2 mutation is greatest among families with
history of several cases of breast cancer, both ovarian and breast
cancer, or one or more family members who have two primary cancers.
However, not every woman in that family will carry the mutated BRCA
gene, not every cancer within that family will be a result of a
mutated BRCA gene and not every individual within that family that
carries an altered BRCA gene will develop cancer.
Treatment
There are several options for risk reduction and prevention
available to those who find out they have a mutation.
- Closer observation which includes:
Annual mammogram commencing at an age that is ten
years younger than the youngest relative with breast cancer. (or 35
years of age which is ever is younger)
Medical breast exam should be done every six months
Breast self-exam done every month (after menstrual period)
Annual MRI of the breast
Yearly pelvic ultrasound
Measurement of Ca-125 levels in conjunction with pelvic
ultrasound
- Chemoprophylaxis Administration of medication as a mode
of prevention of infection or illness
For prevention of breast cancer
Tamoxifen This drug blocks the effects of estrogen in
most of the body including the breasts
Side effects of this drug include: vaginal discharge, vaginal
dryness, hot flashes, and urinary issues
Though rare, Tamoxifen can cause endometrial or uterine cancer,
blood clots, and stroke
Raloxifene This drug works like Tamoxifen by blocking
the effect of estrogen on the breast and the rest of the body. It
does not however estrogen effects on the uterus that Tamoxifen does.
Side effects of this drug include: Hot flashes, vaginal dryness,
muscle and joint discomfort, increase in weight. Though the
risks involved with Raloxifene are similar to Tamoxifen they might
be lower.
Aromatase Inhibitors blocks estrogen production by
various tissues in the body. However it does not block estrogen
production by the ovaries. It is therefore a drug used after
menopause.
- Preventative Surgery
Mastectomy Studies have shown that it is
highly effective, as it significantly reduces the risk of breast
cancer. However, it does not guarantee that breast cancer will not
develop. This is because breast tissue is found in other places such
as armpits, collarbone or upper abdominal wall. If this breast
tissue is not removed, breast cancer can develop, though the
likelihood is slim.
Complications can arise with mastectomies such as bleeding,
infection and poor wound healing, as well psychological symptoms
such as anxiety and depression.
Oophorectomy Though this surgery is regarded as
relatively safe, complications can arise, such as; infection and
intestinal blockage. In addition those women who are premenopausal
may experience complications due to the removal of the ovaries and
thereby losing the hormones excreted by the ovaries. This surgery
may cause these women to go into early menopause which leads to
multiple risks. Those include among others: Osteoporosis, hot
flashes, sleep disruption, and sexual problems.
This surgery does not completely protect against cancer as different
cancer that has a similar appearance and behaves identically can
develop. This cancer is called primary peritoneal cancer but its
risk is considered very low.
Testing
Annual mammogram commencing at an age that is
ten years younger than the youngest relative with breast cancer. (or
35 years of age which is ever is younger)
Medical breast exam should be done every six months
Breast self-exam done every month (after menstrual period)
Annual MRI of the breast
Yearly pelvic ultrasound
Measurement of Ca-125 levels in conjunction with pelvic
ultrasound
The above tests are done as a preventative measure for those who are
carriers of the BRCA mutation. However these tests are also use to
confirm diagnosis of cancer and as a measure to the efficacy of
treatment if cancer does develop.
Genetic testing Genetic testing for breast and ovarian cancer risk
involves looking for BRCA 1 and BRCA2 gene mutations. Genetic
testing and counseling will help ascertain family history and
genetic inheritance.
Laboratories and Screening
The following laboratories offer genetic testing for Hereditary
Breast and Ovarian Cancer (BRCA1 BRCA2):
United States
Israel
Canada
Europe
New Zealand
South Korea
UNITED STATES
Boston University School of Medicine- Human Genetics
700 Albany Street
Suite 408
Boston, MA 02118-2394
Phone: (617) 638-7083
Fax: (617) 638-7092
***Offers prenatal testing
Division of Molecular Diagnostics
Department of Pathology
University of Pittsburgh Medical Center
Room S780 Scaife Hall
3550 Terrace St.
Pittsburgh, PA 15213
Phone: (412) 648-8519
Fax: (412) 383-9594
Email: mdx@upmc.edu
Fox Chase Cancer Center
Clinical Molecular Genetics Laboratory
Director: Dr Betsy A Bove, PhD, ASCP
West W232
Philadelphia, Pennsylvania
Phone: (215) 728-4785
Fax: (215) 728-4333
***Targeted Mutation Analysis - Mutation panel: Ashkenazi Jewish
Founder mutations for BRCA1&2
Myriad Genetic Laboratories, Inc
320 Wakara Way
Salt Lake City, UT 84108
Roa Benjamin, PhD, Director
Phone: (800) 469-7423
Fax: (801) 584-3615
***Target Mutation Analysis BRCA 1, BRCA2
New Jersey Medical School
Institute of Genomic Medicine
University Hospital
Director: James J Dermody, PhD, FACMG
150 Bergen Street, F Level,
Room F342
Newark, NJ 07103
Phone: (973) 972-3170
Fax: (973) 972-0795
Target Mutation Analysis BRCA 1
Rush University Medical Center
Inherited Susceptibility to Cancer Center
Risc Center
Phone: (312) 563-2361
Email: contact_rush@rush.edu
UCLA Diagnostic Molecular Pathology Laboratory
11633 San Vicente Blvd.,
Los Angeles, CA 90049
Phone: (310) 794-2781
Fax: (310) 794-2765
***Target Mutation Analysis BRCA 1, BRCA2
UC San Francisco
Molecular Diagnostic Laboratory
185 Berry Street, Suite 290 (Central Processing for shipped
specimens)
San Francisco CA 94107
Phone: (415) 476-5512
Main Clinical Inquiries
Phone: (415) 353-1667
Director: Farid F Chehab PhD
Phone: (415) 476-0310
Fax: (415) 353-4828
***Offers prenatal testing
UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514
Phone: (919) 966-4408
Fax: (919) 966-6351
***BRCA1, BRCA2 testing only available to those referred by the
Cancer Genetics Clinic
University of Chicago
University of Chicago Genetic Services
Director: Soma Das, PhD
5841 South Maryland, Room G701/MC0077
Chicago, IL 60637
Phone: (773) 834-0555
Fax: (312) 729-2808
Toll Free: (888) UC-GENES or (888) 824-3637
***Target Mutation Analysis BRCA 1, BRCA2
ISRAEL
Assaf Harofeh Medical Center
Molecular Genetics Laboratory
Zerifin, Israel
Phone: (+972) 8-977-9617
Web:
http://www.assafh.org/ENG/index.asp
Edith Wolfson Medical Center
Molecular Genetics Laboratory
Holon, Israel
Contact: Esther Leshinsky-Silver, PhD
Phone: (+972) 3-502-8692
Fax: (+972) 3-502- 8543
GGA Galil Genetic Analysis Ltd
P.O.B. 3664
Kazerin, Hatzafon, Israel 12900
Phone: (+972) 4-900-7100
Fax: (+972) 4-900-7111
Email: gga@gga.org.il
Hadassah Hospital Hadassah Ein Karem
Human Molecular Genetic Laboratory
Dr. Israela (Issy) Lerer (Director)
POB 12000
Jerusalem 91120
Israel
Phone: (+972) 2-677-6016
Fax : (+972) 2-677-7499
Web: http://www.hadassah.org.il
HaEmek Medical Center
Molecular Genetics Unit
Afula 18101 , Israel
Phone: (+972) 4-649-5416
Email:
morad_kh@clalit.org.il
Kaplan medical center, Molecular Genetics Laboratory
Rehovot, Israel
Phone: (+972) 8-944-1534
Web:
http://www.clalit.org.il/kaplan
Pronto Diagnostic Ltd.
19A Habarzel Street
Ramat Hachayal
Tel Aviv, Israel 69710
Phone: (+972) 73-312-6155
Fax: (+972) 73-212-6144
Email:
info@prontodiagnostics.com
Rabin Medical Center
Molecular Genetics
Petah Tikva, Israel
Director: Mordechai Shohat, MD
Genetic Counselor: Inbal Kedar, MSc
Phone: (+972) 3-937-7659
Fax: (+972) 3-937-7660
Email: inbalkd@clalit.org.il
Shaare Zedek Medical Center
Medical Genetics Institute
Jerusalem, Israel
Phone: (+972) 2-666-6435
Fax: (+972) 2-666-6935
Director: Prof. Ephrat Levy-Lahad
Email: liorab@szmc.org.il
Sheba Medical Center
The Danek Gertner Institute Human Genetics
Molecular diagnosis Laboratory
Tel Hashomer; Ramat Gan 52621, Israel
Phone: (+972)3-530-3060
Web: http://www.eng.sheba.co.il
CANADA
Alberta Children's Hospital
Molecular Diagnostic Laboratory
Calgary, Alberta, Canada
Phone: (403) 955-7026
Fax: (403) 955-7624
EUROPE
Finland
Germany
Spain
United Kingdom
FINLAND
HUSLAB Laboratory of Molecular Genetics
Obstetric Hospital
Haartmaninkatu 2, C-wing, 5th floor
FI-00029 Helsinki, Finland
Sample enquiries: (+358) 9-471 74339
Service enquiries: (+358) 9-471 75905
Fax: (+358) 9-471 74001
Contact persons:
Specialist in Medical genetics
Phone: (+358) 9-471 75905
GERMANY
Bioscientia GmbH
Center for Human Genetics
Ingelheim, Germany
Contact: Dr Nadine Bachmann
Phone: (+49) 6132-781-429
Fax: (+49) 6132-781-194
Email:
nadine.bachmann@bioscientia.de
Centogene GmbH
Schillingalee 68
18057 Rostock
Germany
Phone: (+49) 381-203652-0
Fax: (+49) 381-203652-19
Email:
office@centogene.com
Diagenom GmbH
Robert-Koch-Str. 10
D-18059 Rostock
Germany
Tel. (+49) 381-7022750
Fax (+49) 381-7022759
Email: mail@diagenom.de
Institute of Medical Diagnostics
Human Genetics
Nicolaistr. 22
Berlin, Germany 12247
Contact: Stephan Niemann, MD, PhD
Phone: (+49) 307-7001 ext 211
Fax: (+49) 307-7001 ext 332
Email:
sniemann@imd-berlin.de
MGZ
Medical Genetics Center
Bayerstraίe 3-5 (durch die Mathδser-Passage)
Eingang Schlosserstraίe 6
80335 Mόnchen
Phone: (+49) 89-30 90 886-0
Fax: (+49) 89-30 90 886-66
Email:
info@mgz-muenchen.de
SPAIN
IMEGEN (Instituto de Medicina Genσmica, S.L.)
Science Park. University of Valencia
C/ Catedrático Agustín Escardino, 9
E46980 Paterna (Valencia)
SPAIN
Phone: (+34) 963 212 340
Fax: (+34) 963 212 341
Email: info@imegen.es
UNITED KINGDOM
All Wales Molecular Genetics Laboratory
Institute of Medical Genetics
University Hospital of Wales
Heath Park
Cardiff CF14 4XW
Contact: Sheila Palmer-Smith, DipRCPath
Phone: (+44) 2920 742641
Fax: (+44) 2920 744059
GSTS Pathology
DNA Laboratory
London, United Kingdom
Director: Stephen Abbs, PhD, FRCPath
Phone: (+44) 20-71882582
Fax: (+44) 20-71887273
Email: stephen.abbs@gsts.com
Northwick Park and St. Mark's Hospitals
Kennedy-Galton Centre - NW Thames Regional Genetics Service
Harrow, United Kingdom
Director: Stewart Payne, DipRCPath
Phone: (+44) 20-88693180
Fax: (+44) 20-88693106
Email: stewart.payne@nwlh.nhs.uk
NEW ZEALAND
LabPLUS - Auckland City Hospital
Molecular Genetics Laboratory - Diagnostics Genetics
Auckland, New Zealand
Contact: Alice George, BSc (Hons)
Phone: (+64) 9-3074949 ext 6396
Fax: (+64) 9-3072826
Email: aliceg@adhb.govt.nz
SOUTH KOREA
Samsung Laboratory of Medicine
50, Irwon - Dong, Gangnam - Gu,
Seoul, Korea 135 - 230
Phone: (+82) 2-3410 -6469
Fax: (+82) 2-3410 - 0022
Email:
samsunglab.smc@samsung.com
Web:
http://www.samsunglab.org
Resources and More
The Metropolitan New York Registry of Breast Cancer Families
The Metropolitan New York Registry of Breast Cancer Families, which
enrolls families that have several members stricken with breast
and/or ovarian cancer, is a resource for future studies. Qualified
researchers will be able to use the resources of the Registry for
research on genetic and environmental factors in cancer.
The Registry will include members of families with a history of
breast and ovarian cancer.
Families with the following health histories will be encouraged to
participate:
Two or more relatives with breast or ovarian cancer
One or more relatives with early age at diagnosis
A relative with both breast and ovarian cancer, or bilateral
breast cancer
A male relative with breast cancer
Contact the Metropolitan New York Registry
Phone: (212) 263-5964
or
Fax: (212) 263-8570
Web:
http://www.med.nyu.edu/Biostat-Epi/mnyr.htm
Collaborating National & International Institutions:
New York University Medical Center
Department of Environmental Medicine
341 East 25th Street, Room 209; New York, NY
10010
Memorial Sloan Kettering Cancer Center
Cancer Information Service - call 1-800-4CANCER
Beth Israel Medical Center
Columbia-Presbyterian Medical Center
Women at Risk Program Call 212-586-9525
Mt. Sinai Medical Center
SUNY-Stonybrook Medical Center
Fox Chase Cancer Center, Philadelphia
Northern California Cancer Center, San Francisco
Huntsman Cancer Institutes, Salt Lake City, Utah
Ontario Cancer Treatment & Research Foundation,Toronto, Canada
University of Melbourne, Australia
Support Groups
Breast Cancer
Sharsheret
1086 Teaneck Road, Suite 3A
Teaneck, NJ 07666
Toll Free: (866) 474-2774
Phone: (201) 833-2341
Fax: (201) 837-5025
Email: info@sharsheret.org
FORCE: Facing Our Risk of Cancer Empowered
16057 Tampa Palms Blvd. W, PMB #373
Tampa, FL 33647
Toll-free: (866) 288-RISK (7475)
Fax: (954) 827-2200
Email:
info@facingourrisk.org
Toll-free Helpline: (866) 824-RISK (7475)
Bright Pink
400 N. State Street Suite: 230
Chicago, IL 60554
Web:
http://www.bebrightpink.org
Ovarian Cancer
Ovations for the Cure of Ovarian Cancer
251 West Central Street, Suite 32
Natick, MA 01760
Phone: (508) 655-5412
Fax: (508) 655-5414
Toll Free: (866) 920-OFTC (6382)
Email:
info@ovationsforthecure.org
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