pictures of breast from dogs

breast cancer on dogs pictures of breast from dogs
Breast Cancer

Among all cancers ladies, he takes the initial place. In most cases, breast cancers 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, in addition to cancer in the nipple as well as the nipple from the field (Paget's disease in the breast). For the nodular cancers are seen as the node developing a diameter all the way to several centimeters. In certain instances, a strong knot, is permeated with whitish layers tissue penetrating in to the surrounding fat, in other people - a soft, juicy for the cut, splits easily. Diffuse cancer of the prostate is covered for a considerable distance, the contours of the tumor are marked bad. Sometimes the cancer invades skin and forms for the surface of decaying mushroom formation - a cancerous ulcer. In certain instances, the tumor spreads over the surface with the breast and many types of the iron is included having a dense shell.

In histological structure would be the following forms 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 a varying degrees of tissue and cell irregularities, which permitted to distinguish different a higher level malignancy. This type of cancer include, particularly, infiltrating ductal and lobular carcinoma, which usually gets the structure of scirrhus, along with Paget's disease.

Causes of Breast Cancer.

The reasons for breast cancer often are hormonal changes inside body: the entry into menopause, if you have a dynamic restructuring from the hormonal regulation with the woman, the ovaries lose their activity, decreased manufacture of progesterone and estrogen, one's body is certainly going through, "hormonal crisis." The mammary gland and endometrium (lining in the uterus) are most understanding of these changes, the breast growth actually starts to dissolve and be replaced by fat.

Scientifically established the female hormones estrogen-, plays a vital role within the growth and development of cancer of the breast. The excess hormones in the body creates a favorable background for developing the condition. The least active hormones estrogen behave while pregnant and after birth - during breastfeeding. It is proved that the birth and prolonged breastfeeding (more than 12 months) to cut back the potential risk of developing cancer of the breast. On the other hand, abortion bring about hormonal "explosion" in the woman's body that may trigger the progression of tumors. So far there is no consensus about the impact for the growth and development of tumors of hormonal contraceptive drugs, however it is thought that these drugs reduce the chance of developing breast cancer, but increase the risk of developing cancer with the female genital organs, and osteoporosis. In addition predisposition to breast cancer can cause harmful environmental factors: the planet, in addition to inflammatory diseases previously deferred breast - mastitis.

In addition, patients with a category of first-degree relatives with breast cancer (mothers and sisters) probability of developing a tumor increasing by greater than half - familial varieties of cancer.

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

The cause of breast cancers could be the connection between 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 lead to cancer from the breast and female the reproductive system, with the excess dimply skin within the body, it is a different endocrine organ and starts to actively produce hormones-estrogens, whose action and provokes the growth and development of tumors.

Symptoms of Breast Cancer

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

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

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

In certain cases, breast cancers manifests in the form of metastases inside lymph nodes for the affected side, often doesn't detect the tumor itself - show hidden breast cancer.

For small tumors in the breast, any symptoms arise. The most observant women and their husbands can detect tumor site inside the gland by accident, but in the large breast to detect small size hard knot. Revealed a knot might be painful when pressed, round, smooth and agile, this speaks and only a benign tumor. Signs of malignancy other: a decent knot to touch the stone, its surface is uneven, it really is stationary or slightly shifted, can be firmly fixed on the surrounding tissue or skin, usually painless, can reach a significant size (more than three to five cm and sometimes 10-15 cm).

Need to evaluate the surface of the skin on the tumor: the malignant process is going to be observed retraction with the skin, collecting inside the folds, wrinkles, a symptom of "lemon peel" - an area swelling in the skin over the tumor, might be a direct tumor invasion to the skin surface, then it might be a bright beautiful red colors and sprawl as "cauliflower."

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