Breast cancer
is a malignant tumor that begins from cells in the breast, there are several
types of breast cancer and can develop in any part of the breast most commonly
the inner lining of the breast or the lobules.
Breast
cancer occurs in human and mammals majority of human cases are women and can rarely
develop in men as well.
World wide
breast cancer account for 22.9% of all cancer in women, 100 times more in women
than men.
Prognosis and
survival rates vary greatly depending on the cancer type, stage, treatment and
geographical location of the patient. Survival rates are much poorer in the developing
countries.
Early
detection and treatment is very important and have helped to improve quality of
life and reduce the number of breast cancer related death.
CAUSE
The exact cause of breast cancer is still unknown although
researchers are working round the clock to unravel the medical mystery.
SIGNS / SYMPTOMS.
The most
common symptoms is a lump which may be hard/firm usually painless with
irregular borders in the breast. Other likely signs which may send a red flag
are:
Inverted nipple
Peeling, scaling or flaking of the nipple or
breast skin
Redness or pitting of the skin over your
breast, like the skin of an orange
Change in the size or
shape of a breast
Swelling
beneath the armpit,
Bloody discharge
from the nipple,
Rash on or
around nipple,
A nipple changing position,
And skin dimpling.
Breast
cancer may present as metastatic (i.e spread of cancer to other part of the
body) disease depending on the site of metastasis, weight loss, fever, joint
pain, bone pain.
Risk Factors
Although the
causes of cancer are still under research, medical scientists have identified a
number of factors which may increase the chances of a woman experiencing breast
cancer. These include:
·
Majority
over the age of 50
·
Family
history of breast cancer
·
ORAL
CONTRACEPTIVE/Hormone replacement therapy
·
Exposure
to radiation
·
Early
menstruation: before age 12
·
Late
menopause: after age 55
·
Increase
alcohol intake
·
Smoking
·
Obesity
·
Lack
of Child bearing /breast feeding
·
Genes
- there are two genes, BRCA1 and BRCA2 that greatly increase the risk.
DIAGNOSIS
Breast
cancer can be diagnosed by:
·
Physician
and self examination of the breast.
·
Mammography
(i.e process of using low energy x-ray to examine the human breast and is used
as diagnostic and screening tool.)
·
Ultrasound
testing (i.e using sound waves to examine the breast.)
·
Biopsy
(i.e it is the medical removal of tissue from a living subject to determine the
presence or extent of a disease.)
MANAGEMENT
Management
of breast cancer depends on types of cancer and if stages (they are usually in stages
0 to stage 4) treatment options include
·
Local
treatment.
·
Systemic
treatment
·
Adjuvant
therapy
·
Neo-adjuvant
1. Local treatment: treat the tumour
without affecting the rest of the body which include:- Surgery and Radiation
therapy,
Standard surgery include: Lumpectomy, mastectomy which can be simple,
partial or radical mastectomy.
2. Systemic treatment: Using medications
or cancer fighting drugs to treat to treat cancer which include chemotherapy,
hormone and immunotherapy.
3. Adjuvant therapy- Drugs used after
and in addition to surgery.
4. Neo-adjuvant: giving chemotherapy
before surgery to shrink the tumour.
The goal of
treatment for stage 0 to III is to treat cancer cells and prevent it from
spreading. Stage IV is aim at preventing symptoms and Improve quality of life.
Prevention
of breast cancer:
Some types
of breast cancer are treatment if detected early guideline for breast cancer
screening includes.
·
Yearly
mammograms for women over the age of 40.
·
Clinical
breast cancer exams by a health expert every three years for women in their
20’s and 30’s and yearly for women over the age of 40.
·
Self
breast-examination beginning in their 20’s.
WAYS TO
REDUCE RISK FACTORS FOR BREAST CANCER.
Risk factors
may increase your likelihood of developing breast cancer, although some people
that develop breast cancer breast do not have any risk factors. However the
chances of developing breast cancer increases with the more risk factors you
have.
REDUCING
RISK FACTORS FOR BEAST CANCER INCLUDES:
·
Limiting
alcohol intake
·
Quit
smoking
·
Maintaining
an appropriate weight
·
Exercising
regularly
·
Limiting
dose and duration of hormone therapy
·
Breast
feeding your children
·
Avoiding
exposure to radiation and environmental pollution.
Support for
breast cancer awareness amongst the citizenry and research funding by the
public will also help improve the diagnosis and treatment of breast cancer in
our society.
Chinyere
Okoro (Dr)
MBBS, IB
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