Kedi Meme Kanseri VetBilgi

breast cancer on dogs Kedi Meme Kanseri VetBilgi
Breast Cancer

Among all cancers in women, he takes the initial place. In most cases, breast cancer develops inside 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 of the field (Paget's disease with the breast). For the nodular cancers are seen as an the node developing a diameter of up to several centimeters. In certain instances, a strong knot, is permeated with whitish layers tissue penetrating into the surrounding fat, in others - a soft, juicy for the cut, splits easily. Diffuse prostate type of cancer is included for any considerable distance, the contours in the tumor are marked bad. Sometimes the cancer invades your skin and forms around the surface of decaying mushroom formation - a cancerous ulcer. In some cases, the tumor spreads across the surface from the breast and all the iron is included with a dense shell.

In histological structure will be the following types of breast cancers:

• noninvasive: intralobular and intraduct;

• infiltrative.

Noninvasive cancer of the breast might be intralobular (lobular carcinoma in situ), and intraduct (ductal carcinoma in situ).

Infiltrating (invasive) cancer is seen as varying examples of tissue and cell irregularities, which able to distinguish different a higher level malignancy. This type of cancer include, in particular, infiltrating ductal and lobular carcinoma, which often has the structure of scirrhus, as well as Paget's disease.

Causes of Breast Cancer.

The factors behind breast cancers often are hormonal changes inside body: the entry into menopause, if you find an active restructuring in the hormonal regulation of the woman, the ovaries lose their activity, decreased manufacture 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 growth starts to dissolve and become replaced by fat.

Scientifically established that this female hormones estrogen-, plays a key role within the continuing development of breast cancers. The excess hormones inside body creates a favorable background for developing the condition. The least active hormones estrogen behave when pregnant and after birth - during breastfeeding. It is proved that the birth and prolonged breastfeeding (a lot more than one year) to lessen the potential risk of developing breast cancer. On the other hand, abortion result in hormonal "explosion" in a very woman's body that may trigger the progression of tumors. So far there isn't any consensus in regards to the impact for the progression of tumors of hormonal contraceptive drugs, however it is believed that these drugs reduce the risk of developing breast cancers, but increase the risk of developing cancer of the female genital organs, and osteoporosis. In addition predisposition to breast cancer might cause harmful environmental factors: the planet, and also inflammatory diseases previously deferred breast - mastitis.

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

Benign breast diseases like fibrocystic breast disease, or fibroadenoz intraduct papillomatosis alone usually do not bring about cancer, but simultaneously, create an unfavorable background for the development.

The cause of breast cancers will be the results of radiation, like irradiation from 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 :, with an excess dimply skin inside the body, it will become a separate endocrine organ and begins to actively produce hormones-estrogens, whose action and provokes the growth and development of tumors.

Symptoms of Breast Cancer

There are several forms from the growth of cancer of the breast:

- Nodular form, the commonest, is seen as a dense knot of 0.5 to 5 cm or more, it can be seen as a all of the following symptoms;

- Diffuse. All of them are very aggressive, grow quickly, almost lightning speed, the tumor without any clear boundaries, "spreading" in the breast and skin. For the first couple of forms are characteristic signs of inflammation: pain from the breast, a bright red colorization of the skin it raises body temperature to 39 degrees C. In view of these symptoms often occur, and errors in carried out patients treated for inflammatory diseases, which can be named and are referred to these forms breast cancers. When tubular carcinoma breast cancer cover like a "skin" of their contracting and decreasing in dimensions.

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

For small tumors of the breast, any symptoms arise. The most observant females and their husbands have the ability to detect tumor site in the gland by accident, but in a very large breast to detect small size hard knot. Revealed a knot may be painful when pressed, round, smooth and agile, this speaks in favor of a benign tumor. Signs of malignancy other: a strong knot to touch the stone, its surface is uneven, it's stationary or slightly shifted, can be firmly fixed on the surrounding tissue or skin, usually painless, can reach a tremendous size (a lot more than three to five cm and quite often 10-15 cm).

Need to evaluate the surface from the skin over the tumor: the malignant process will be observed retraction in the skin, buying within the folds, wrinkles, an indicator of "lemon peel" - a nearby swelling in the skin within the tumor, may be a direct tumor invasion to your skin surface, then it becomes a bright red colorization and sprawl as "cauliflower."

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