breast cancer on mri Breast MRI Wikipedia
Breast Cancer

Among all cancers in women, he takes the first place. In most cases, breast cancers develops within the presence of precancerous changes. This is primarily a benign mammary dysplasia and papilloma ducts.

Breast cancer is represented macroscopically nodular and diffuse forms, as well as cancer with the nipple along with the nipple from the field (Paget's disease in the breast). For the nodular cancers are seen as a the node having a diameter all the way to several centimeters. In some instances, a tight knot, is permeated with whitish layers tissue penetrating into the surrounding fat, in other people - a soft, juicy for the cut, splits easily. Diffuse cancer of the prostate is included for a considerable distance, the contours with the tumor are marked bad. Sometimes the cancer invades your skin and forms about the surface of decaying mushroom formation - a cancerous ulcer. In certain cases, the tumor spreads across the surface with the breast and all the iron is roofed using a dense shell.

In histological structure will be the following forms of cancer of the breast:

• noninvasive: intralobular and intraduct;

• infiltrative.

Noninvasive breast cancers could be intralobular (lobular carcinoma in situ), and intraduct (ductal carcinoma in situ).

Infiltrating (invasive) cancer is characterized by varying examples of tissue and cell irregularities, which able to distinguish different amount of malignancy. This type of cancer include, specifically, infiltrating ductal and lobular carcinoma, which in turn has got the structure of scirrhus, and also Paget's disease.

Causes of Breast Cancer.

The reasons behind breast cancers often are hormonal changes inside the body: the entry into menopause, if you find an energetic restructuring of the hormonal regulation in the woman, the ovaries lose their activity, decreased production of progesterone and estrogen, our bodies goes through, "hormonal crisis." The mammary gland and endometrium (lining in the uterus) are most responsive to these changes, the breast tissue starts to dissolve and become replaced by fat.

Scientifically established that the female hormones estrogen-, plays an important role inside development of breast cancer. The excess hormones inside body results in a favorable background for developing the disease. The least active hormones estrogen behave while pregnant and after birth - during breastfeeding. It is proved that the birth and prolonged breastfeeding (a lot more than one year) to lessen the risk of developing breast cancer. On the other hand, abortion result in hormonal "explosion" inside a woman's body that may trigger the continuing development of tumors. So far there is no consensus about the impact for the development of tumors of hormonal contraceptive drugs, but it's believed that these drugs reduce potential risk of developing breast cancer, but increase potential risk of developing cancer in the female genital organs, and osteoporosis. In addition predisposition to cancer of the breast could cause harmful environmental factors: the planet, and also inflammatory diseases previously deferred breast - mastitis.

In addition, patients with a category of first-degree relatives with cancer of the breast (mothers and sisters) likelihood of creating a tumor increasing by a lot more than half - familial types of cancer.

Benign breast diseases such as fibrocystic breast disease, or fibroadenoz intraduct papillomatosis alone do not cause cancer, but as well, create an unfavorable background for the development.

The reason behind breast cancer would be the outcomes of radiation, for example irradiation with the chest for other diseases (lung tumors, the lymphatic system), prolonged and frequent chest X-ray studies on inflammatory diseases or pulmonary tuberculosis.

Constitutional obesity can bring about cancer of the breast and female reproductive system, having an excess fatty tissue inside the body, it becomes an outside endocrine organ and begins to actively produce hormones-estrogens, whose action and provokes the progression of tumors.

Symptoms of Breast Cancer

There are some forms in the growth of breast cancer:

- Nodular form, the most typical, is seen as an a dense knot of 0.5 to five cm or more, it is seen as a all in the following symptoms;

- Diffuse. All of them are very aggressive, grow quickly, almost lightning speed, the tumor with no clear boundaries, "spreading" in the breast and skin. For the initial two forms are characteristic indications of inflammation: pain of the breast, a bright beautiful red colors with the skin it raises body's temperature to 39 degrees C. In view of such symptoms often occur, and errors in diagnosing patients treated for inflammatory diseases, which are named and are described these forms breast cancers. When tubular carcinoma cancer of the breast cover being a "skin" of the contracting and decreasing in size.

In some instances, cancer of the breast manifests in the form of metastases inside the lymph nodes on the affected side, often ceases to detect the tumor itself - show hidden breast cancers.

For small tumors from the breast, any symptoms arise. The most observant as well as their husbands can easily detect tumor site inside gland by chance, but in a large breast to detect small size hard knot. Revealed a knot can be painful when pressed, round, smooth and agile, this speaks in support of a benign tumor. Signs of malignancy other: a good knot to touch the stone, its surface is uneven, it is stationary or slightly shifted, could be firmly fixed towards the surrounding tissue or skin, usually painless, can reach a significant size (a lot more than 3 to 5 cm and sometimes 10-15 cm).

Need to gauge the surface with the skin in the tumor: the malignant process will probably be observed retraction from the skin, collecting inside the folds, wrinkles, a symptom of "lemon peel" - a local swelling with the skin in the tumor, may be a direct tumor invasion to your skin layer surface, then it might be a bright red colorization and sprawl as "cauliflower."