ductal carcinoma in situ
Introduction
The
carcinoma or cancer of the breast is the most common and sometimes
life-threatening malignancy in females. Although it also occurs in men but on
very rare instances. Most frequently effected tissues of breast that turn into
cancerous growth are ducts and lobules of breast. It is still the major cause
of death due to cancers in females after skin malignancy. The growing awareness
and screening of breasts lumps or otherwise has helped greatly in fight against
this killer disease. This has lead to treatment at earliest stage of breast
cancer, which yields best results. This has also greatly improved survival
rates of breast cancer patients.
The
improvement is attributed to surgical and other therapies of your breast cancer
at stage when it has not spread. It is also important to note that diagnosis of
your breast cancer at younger age has also been contributory for such
remarkable prognosis.
The
statistic from US reveal that an estimated 2,25000 females and 2000 males have
been newly diagnosed from breast cancer.
Symptoms of breast cancer
You
may be diagnosed for breast cancer before any symptom being noticed.
Mammography or feeling of lump may disclose that you have cancer in your
breast. You may rarely discharge from one breast which may or may not be
bloody. Both these situation merit detail investigations. Sudden change of
breast texture, redness of skin over your breast or wrinkling may need
evaluation.
Types of breast cancer
- Invasive breast cancer is type which
has spread from duct or lobule to other breast tissues. Noninvasive is called
breast cancer in-situ. The common types are;
- Ductal carcinoma in-situ is
intraductal breast cancer that is localized to ductal linings.
- Lobular carcinoma in-situ is located
in milk producing cells of breasts.
Both
these types of breast cancer although localized may spread to surrounding
breast tissue or other parts of your body if untreated.
Causes and Risk factors
Like
most of cancers effecting general population, cause of breast cancer have also
not been established so far. The basic change in cellular proliferation starts
in either the ducts or lobules of your
breast. Excess rate of breast cell growth results in tumor formation. The
spread of such cancerous growth from your breast is not uncommon. Following are the most
probable and common risk factor responsible for your breast cancer development;
Age is most
relevant factor in your breast cancer development. Although young age females
may be effected, but your chances of having cancer of breast increase with age.
If you are a woman of 40 years plus, you carry one in 70 chance, whereas at 60
years it becomes as frequent as one in 30 chance in coming ten years. Beyond 50
years your breast cancer may be far advanced at the time of diagnosis.
Being a woman of white race will put you at
more risk then African or black colored female. Previous history of breast
carcinoma in one breast will put you at
four times more danger of malignant growth in other side or a second cancer in
same breast.
Genetic
predisposition has great impact in development of your breast cancer. It is
estimated that about 5-10% of breast
cancer have genetic links. The risk is carried to you from both sides of family
tree. First or second degree relative from father or mother side, any of
siblings (mother, sister or daughter) who have or had breast cancer will make
your breast cancer chances high. Younger the age the greater the risk. Even if
you are a male with rare breast cancer, you may put female member at breast
cancer risk. The gene defect is identified and implicated in your breast cancer
are BRCA1and BRCA2 (breast cancer gene 1 and 2).
A history of
ovarian cancer, endometrial cancer will enhance your breast cancer risk. Even
if you have a past removal or treatment for benign breast hyperplasia, fibro
adenoma, radial scar that will increase your risk of breast cancer.
Early menarche or late menopause make your breast
cancer risk greater through hormonal influence. If your first period started at
the age of 12 or you menopause at 55 or beyond have regular check on change in
your breast structure for any lump. This has been attributed to your longer
exposure female hormones estrogen.
Getting pregnant
at earlier than 30 years will reduce your breast cancer risk. But if you are
nullipara (never borne a child) during fertile period of life, you will have
breast cancer risk at older age.
Hormone DES
(diethyl stilbestrol) when given to you during pregnancy to prevent
miscarriage, premature labor has been shown to increase breast cancer
development chances.
Alcohol
consumption of more than 1-2 drinks/day will be a risk in your breast cancer
growth. This is influenced possibly through increased estrogen levels. More
effected by this risk factor are women at older age group as heavy drinking is
more commonly found in older age. It has been studied that your risk of lobular
carcinoma is increased by 63% as compared non-alcoholics (Women’s Health Initiative, WHI study
1993-1998).
Exposure to DDE
(dichlorodiphenyldichloroethylene) an insecticide, increases your chance of
breast cancer.
If you belong to
higher socioeconomic group you run more risk of breast cancer development than
woman of lower socio strata. As early cessation of breast feeding is more
observed in former class than later.
HRT (hormone
replacement therapy) will be given to you for your post menopausal symptoms for
several years. This will increase risk, if combination preparation of estrogen
and progesterone are taken rather than estrogen preparation alone (women’s health
initiative study).
Obesity increases
your breast cancer development chances. It is shown that taking more fats in
your diet somehow put your risk at higher degree.
Exposure to radiation of upper part of chest if done
at younger age may bring breast cancer after quite many years. It may be done
to treat some kind of cancer like Hodgkin’s lymphoma.
Physical
inactivity will make you more susceptible to develop breast cancer. A study by
Women Health Initiative (WHI) has indicated that regular exercise of 1 ½ hrs- 2
½ hours will minimize your risk of breast cancer by 15-18%.
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