Breast Cancer in Dogs: Diagnosis, Management, And Support

breast cancer on dogs Breast Cancer in Dogs: Diagnosis, Management, And Support
Breast Cancer

Among all cancers ladies, he takes the initial place. In most cases, breast cancer 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, and also cancer from the nipple and the nipple of the field (Paget's disease from the breast). For the nodular cancers are seen as the node having a diameter of up to several centimeters. In some cases, a strong knot, is permeated with whitish layers tissue penetrating to the surrounding fat, on other occasions - a soft, juicy on the cut, splits easily. Diffuse prostate type of cancer is covered for any considerable distance, the contours from the tumor are marked bad. Sometimes the cancer invades skin and forms around the surface of decaying mushroom formation - a cancerous ulcer. In some cases, the tumor spreads across the surface of the breast and all sorts of the iron is covered with a dense shell.

In histological structure are the following varieties of breast cancers:

• noninvasive: intralobular and intraduct;

• infiltrative.

Noninvasive breast cancer could 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 usually contains the structure of scirrhus, as well as Paget's disease.

Causes of Breast Cancer.

The causes of breast cancers often are hormonal changes within the body: the entry into menopause, when there is an energetic restructuring in the hormonal regulation in the woman, the ovaries lose their activity, decreased production of progesterone and estrogen, the body will go through, "hormonal crisis." The mammary gland and endometrium (lining of the uterus) are most responsive to these changes, the breast type tissue actually starts to dissolve and stay replaced by fat.

Scientifically established the female hormones estrogen-, plays a vital role inside growth and development of breast cancers. The excess hormones inside body produces a favorable background for developing the disease. The least active hormones estrogen behave when pregnant and after birth - during breastfeeding. It is proved that the birth and prolonged breastfeeding (over twelve months) to cut back potential risk of developing cancer of the breast. On the other hand, abortion lead to hormonal "explosion" in the woman's body that will trigger the progression of tumors. So far there's no consensus regarding the impact around the continuing development of tumors of hormonal contraceptive drugs, but it is believed that these drugs reduce the potential risk of developing breast cancers, but increase the chance of developing cancer in the female genital organs, and osteoporosis. In addition predisposition to breast cancers can cause harmful environmental factors: the planet, as well as inflammatory diseases previously deferred breast - mastitis.

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

Benign breast diseases including fibrocystic breast disease, or fibroadenoz intraduct papillomatosis alone do not bring about cancer, but at the same time, create an unfavorable background for its development.

The reason behind cancer of the breast could be the effects of radiation, such as irradiation in 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 of the breast and female the reproductive system, with an excess fatty tissue within the body, it is a different endocrine organ and starts to actively produce hormones-estrogens, whose action and provokes the development of tumors.

Symptoms of Breast Cancer

There are some forms of the growth of breast cancers:

- Nodular form, the most common, is seen as a dense knot of 0.5 to five cm or maybe more, it really is seen as a all from 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 first couple of forms are characteristic indications of inflammation: pain from the breast, a bright red color in the skin it raises body's temperature to 39 degrees C. In view of these symptoms often occur, and errors in diagnosis of patients treated for inflammatory diseases, which are named and so are known these forms breast cancers. When tubular carcinoma breast cancers cover as a "skin" of its contracting and decreasing in dimensions.

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

For small tumors from the breast, any symptoms arise. The most observant ladies and their husbands can easily detect tumor site inside gland unintentionally, but in a very large breast to detect small size hard knot. Revealed a knot can be painful when pressed, round, smooth and agile, this speaks in favor of a benign tumor. Signs of malignancy other: a good knot to touch the stone, its surface is uneven, it can be stationary or slightly shifted, can be firmly fixed to the surrounding tissue or skin, usually painless, can reach an important size (greater than three to five cm and quite often 10-15 cm).

Need to gauge the surface with the skin over the tumor: the malignant process will be observed retraction from the skin, collecting within the folds, wrinkles, a symptom of "lemon peel" - a nearby swelling with the skin on the tumor, can be a direct tumor invasion to your skin surface, then it will become a bright red colorization and sprawl as "cauliflower."

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