Dog Breast Cancer and Canine Mammary Tumor Treatment Options

breast cancer on dogs Dog Breast Cancer and Canine Mammary Tumor Treatment Options
Breast Cancer

Among all cancers in women, he takes consumers. In most cases, cancer of the breast develops in 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 with the nipple as well as the nipple from the field (Paget's disease from the breast). For the nodular cancers are seen as the node using a diameter all the way to several centimeters. In certain cases, a good knot, is permeated with whitish layers tissue penetrating in the surrounding fatty tissue, on other occasions - a soft, juicy about the cut, splits easily. Diffuse cancer of the prostate is included for the considerable distance, the contours from 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 instances, the tumor spreads down the surface from the breast and all sorts of the iron is covered which has a dense shell.

In histological structure include 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 characterized by varying degrees of tissue and cell irregularities, which permitted to distinguish different a higher level malignancy. This type of cancer include, in particular, infiltrating ductal and lobular carcinoma, which will contains 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, if you have an energetic restructuring in the hormonal regulation in the woman, the ovaries lose their activity, decreased production of progesterone and estrogen, our bodies is going through, "hormonal crisis." The mammary gland and endometrium (lining in the uterus) are most tuned in to these changes, the breast growth actually starts to dissolve and stay replaced by fat.

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

In addition, patients having a category of first-degree relatives with breast cancer (mothers and sisters) likelihood of having 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 don't lead to cancer, but concurrently, create an unfavorable background for the development.

The reason behind cancer of the breast could be the effects of radiation, like irradiation of 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 reproductive :, by having an excess fat inside the body, it is another endocrine organ and begins to actively produce hormones-estrogens, whose action and provokes the continuing 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's characterized by all from the following symptoms;

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

In certain cases, cancer of the breast manifests inside form of metastases inside the lymph nodes for the affected side, often ceases to detect the tumor itself - show hidden breast cancer.

For small tumors in the breast, any symptoms arise. The most observant ladies and their husbands can detect tumor site inside the gland accidentally, but in the large breast to detect small size hard knot. Revealed a knot may 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 really is stationary or slightly shifted, may be firmly fixed on the surrounding tissue or skin, usually painless, can reach a tremendous size (more than three to five cm and quite often 10-15 cm).

Need to assess the surface in the skin over the tumor: the malignant process will be observed retraction with the skin, picking up within the folds, wrinkles, a symptom of "lemon peel" - a neighborhood swelling from the skin on the tumor, is often a direct tumor invasion to the skin surface, then it will become a bright red color and sprawl as "cauliflower."

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