Dog breast cancer

breast cancer on dogs Dog breast cancer
Breast Cancer

Among all cancers in ladies, he takes consumers. 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, along with cancer in the nipple as well as the nipple with the field (Paget's disease with the breast). For the nodular cancers are seen as a the node creating a diameter up to several centimeters. In some cases, 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 prostate type of cancer is included to get 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 some cases, the tumor spreads over the surface of the breast and all sorts of the iron is covered with a dense shell.

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

• noninvasive: intralobular and intraduct;

• infiltrative.

Noninvasive breast cancer may 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, specifically, infiltrating ductal and lobular carcinoma, which in turn has the structure of scirrhus, as well as Paget's disease.

Causes of Breast Cancer.

The reasons for breast cancers often are hormonal changes in the body: the entry into menopause, when there is a dynamic restructuring in the hormonal regulation in the woman, the ovaries lose their activity, decreased creation of progesterone and estrogen, one's body goes through, "hormonal crisis." The mammary gland and endometrium (lining in the uterus) are most tuned in to these changes, the breast growth begins to dissolve and be replaced by fat.

Scientifically established that this female hormones estrogen-, plays a key role within the growth and development of breast cancer. The excess hormones within the body generates a favorable background for developing the illness. The least active hormones estrogen behave while pregnant and after birth - during breastfeeding. It is proved that the birth and prolonged breastfeeding (greater than twelve months) to cut back the potential risk of developing breast cancer. On the other hand, abortion lead to hormonal "explosion" in a very woman's body that may trigger the progression of tumors. So far there's no consensus in regards to the impact on the progression of tumors of hormonal contraceptive drugs, but it is belief that these drugs reduce the chance of developing breast cancer, but increase potential risk of developing cancer from the female genital organs, and osteoporosis. In addition predisposition to breast cancers may cause harmful environmental factors: the surroundings, as well as inflammatory diseases previously deferred breast - mastitis.

In addition, patients using a family of first-degree relatives with breast cancer (mothers and sisters) probability of having a tumor increasing by a lot more than half - familial types of cancer.

Benign breast diseases like fibrocystic breast disease, or fibroadenoz intraduct papillomatosis alone tend not to bring about cancer, but as well, create an unfavorable background for its development.

The cause of cancer of the breast may be the effects of radiation, such as 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 cause cancer in the breast and female the reproductive system, with an excess fatty tissue inside the body, it becomes a separate endocrine organ and begins to actively produce hormones-estrogens, whose action and provokes the development of tumors.

Symptoms of Breast Cancer

There are a couple of forms of the growth of breast cancers:

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

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

In certain instances, breast cancer manifests within the form of metastases inside lymph nodes about 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 as well as their husbands can detect tumor site inside the gland by accident, but in a large breast to detect small size hard knot. Revealed a knot could be painful when pressed, round, smooth and agile, this speaks and only a benign tumor. Signs of malignancy other: a strong knot to touch the stone, its surface is uneven, it is stationary or slightly shifted, may be firmly fixed on the surrounding tissue or skin, usually painless, can reach a substantial size (a lot more than 3 to 5 cm and sometimes 10-15 cm).

Need to assess the surface with the skin in the tumor: the malignant process will likely be observed retraction in the skin, collecting within the folds, wrinkles, an indication of "lemon peel" - an area swelling in the skin on the tumor, can be a direct tumor invasion to the skin surface, then it might be a bright red color and sprawl as "cauliflower."

Share this post