Breast Cancer

Breast Cancer

Epidemiology Breast cancer is the most common malignancy in women and the second most common (after lung cancer) cause of death in this group. However, to some extent, it concerns men as well.Different countries in the world have varying incidence of breast cancer.
Epidemiology: Breast cancer is the most common malignancy in women and the second most common (after lung cancer) cause of death in this group. However, to some extent, it concerns men as well.Different countries in the world have varying incidence of breast cancer. The West Europe countries and the USA have the highest incidence rates, adequately 35-60/100 000 and 65/100 000, whereas the Far East countries have the lowest rate (i.e. in Japan it is five times lower than in the USA).

Risk factors: Risk factors point to increased risk, that is at higher probability of falling ill among specimens of a given population. The most important risk factors include:

1. Woman's age: Incidence of breast cancer increases with age.

2. Ethnic/geographical factors: These factors, although they have been taken into consideration for years, are extremely difficult to interpret. High breast cancer incidence occurs in the USA and in West Europe, low - in Asian, Far East and African countries. Breast cancer is usually developed in Caucasian women living in a quite cold climate in the highly developed countries. It is dependent upon the influence of the following factors: race, climate, nutrition style, types of the undergone diseases, lifestyle and culture style, family planning, age of the first pregnancy, number of children, breastfeeding's popularity, etc. Black and yellow women become ill more rarely.

3. Family factors: The more affected relatives and the closer degree of kinship to them, the bigger probability of suffering from cancer. The risk increases, if these tumours occurred in one's mother and sister under the age of 35 . Genetically determined breast cancer, which amounts to 10% of all the breast tumours, most often being the result of BRCA1, BRCA2, p53 and ATM genes mutation. Breast cancer can also occur in the course of some inheritably associated syndromes, among others in Li-Fraumeni syndrome, Lynch II syndrome, Cowden's disease, Peutz-Jaeghers syndrome, ataxia-teleangiectasia, Klinefelter syndrome

4. Age of first menstruation and menopause: Appearance of first menses before the age of 12 significantly increases (by about 40%) the risk of breast cancer. Natural menopause appearing after age 55 increases risk of breast cancer twofold. Thus, the most important factor is the total number of years of ovulation activity.5. Age of first pregnancy and delivery: Women who give birth to their first child in the age of between 20 and 30 have a lower risk of breast cancer. Nulliparous women are more exposed to breast cancer, by almost 50%.

6. Breastfeeding: Women with much lower risk of falling ill protected from breast cancer development by breastfeeding. Even relatively short time of breastfeeding gives some protection

7. Ionising radiation: High doses of X radiation (applied during routine "X-rays") can cause breast cancer. It is worth to stress that the contemporary mammography apparati expose a woman to a minimal dose of radiation.

8. Alcohol and diet: Excessive alcohol consumption for a long period of time increases the risk of breast cancer development, because the liver damage impairs estrogen metabolism (high estrogen concentration increases the risk of falling ill). It is suspected that one of the factors, which increases the breast cancer risk, is food with high content of saturated fat

9. Obesity: Obesity increases the risk of breast cancer development, as it is more difficult to find breast changes in obese people . moreover, fat cells produce estrogens

10. Exogenous hormones (hormone contraceptives): It is believed that oral contraceptives (which include mainly estrogens), even if they are connected with breast cancer, act as a factor facilitating and accelerating the development of the disease, which has already appeared, rather than a factor causing genetic mutations and evoking disease. It is also believed that pills that are made only of progesterone and so called "minipills" don't increase the breast cancer risk. The pills may increase the risk in genetically loaded women or women using oral contraceptives for at least 8 years until first pregnancy. It is believed that preparations which include progesterone alone, don't affect the risk for breast cancer appearance. However, preparations that include progesterone and estrogens may influence the tumour appearance. The risk is growing for women taking hormone medications longer than 8 years.

Treatment: Breast cancer is treated locally or generally, although some patients may undergo both types of treatment. Local treatment consists in surgical removal or destruction of the lesion. General treatment (chemotherapy, hormone therapy) aims at inhibiting the tumour process or decreasing the size of tumour before operation and it is also applied in significant disease progression instead of surgery. Surgical treatment is the most common way to treat breast cancer. Patients in I0 and II0 clinical progression are qualified for the surgical treatment . The most often performed surgery is the modified breast amputation by Patey's way (excision of the breast gland together with the axillary lymph nodes, without removing the breast muscles). Some patients are qualified for breast conserving treatment.

Such possibility exists in the following cases:

The absolute contraindications include:

  1. Multicentric cancer
  2. Cancer relapse after the previous breast conserving treatment
  3. Previous undergoing of breast irradiation
  4. No possibility of getting the margin of healthy tissue

The relative contraindications include:

  1. Pregnancy
  2. Foreseen unsatisfying cosmetic effect
  3. Connective tissue disease (collagenosis)

Breast Conserving Treatment (BCT) includes replacing tumour within healthy tissues and regional axillary lymph nodes. The following ways of breast tumour removal are distinguished:

Radiotherapy - uses high energy radiation to destroy the cancer cells and to prevent them from further growth and fissions. There are two kinds of radiotherapy: exterior (source of radiation is located outside the human body) and interior (special containers with the radiation material are placed in the tumour site). Another kind of radiotherapy is brachytherapy which involves placing thin tubes in breast. The radiation is directed through these tubes straight to the tumour cells. Nowadays brachytherapy is applied after breast conserving treatment. It happens that radiotherapy is applied before surgery to decrease the size of tumour and/or to facilitate the tumour removal.

Chemotherapy involves the application of medicines that are aimed at tumour destruction. In breast cancer chemotherapy is usually composed of a few types of medicines, which are administered either directly to vein or in the form of pills. Regardless of the way of administering, the medicines get inside blood and flow with it through the whole body, which also results in negative effects for this therapy (nausea, vomiting, hair falling out, neutropenia, menstruation disorder, earlier menopause).

Radoslaw Pilarski is a PhD candidate working on anticancer properties of Uncaria tomentosa - http://www.uncariatomentosa.com - at PAS, Poland. mLingua Worldwide Translations, Ltd. - http://mlingua.pl - provides professional language translations.

- Radoslaw Pilarski

More News Information About "Breast Cancer":

Google








Nolvadex is used for treating breast cancer that has spread to other sites in the body
Drug Name Nolvadex (Tamoxifen) Drug Uses Nolvadex is used for treating breast cancer that has spread to other sites in the body. How Taken Use Nolvadex as directed by your doctor. ...
Publication date: Mon, 05 Jan 2009 05:57:35 EST


Source: GoArticles Advanced Search Results
GoArticles.com is an article resource site for Authors, Publishers and Webmasters which provides the best collection of expert articles available on the Web
The Site, its content, such as text, graphics, images, search results, and other material contained on this Site ("Content"), its services, and any information or material posted on the Site by third parties are provided for informational purposes only. None of the foregoing is a substitute for professional medical advice, examination, diagnosis, or treatment. Always seek the advice of a physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this Site. If you think you may have a medical emergency, call your doctor or 911 immediately.
Copyright © www.YourTipsAbout.com. All Rights Reserved. An E.F.B. Publishibg Website - Sitemap