Noahs Animal Hospitals: DOGS AND CATS CAN DEVELOP BREAST CANCER TOO! by Dr. Kerri Suhr, D.V.M.

breast cancer on dogs Noahs Animal Hospitals: DOGS AND CATS CAN DEVELOP BREAST CANCER TOO! by Dr. Kerri Suhr, D.V.M.
Breast Cancer

Among all cancers in females, he takes the first place. 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, in addition to cancer with the nipple and the nipple in the field (Paget's disease with the breast). For the nodular cancers are seen as an the node using a diameter up to several centimeters. In some instances, a good knot, is permeated with whitish layers tissue penetrating in to the surrounding dimply skin, in other people - a soft, juicy around the cut, splits easily. Diffuse cancer of the prostate is roofed for a considerable distance, the contours from the tumor are marked bad. Sometimes the cancer invades your skin layer and forms for the surface of decaying mushroom formation - a cancerous ulcer. In certain instances, the tumor spreads over the surface of the breast and many types of the iron is covered having a dense shell.

In histological structure would be the following varieties of breast cancer:

• noninvasive: intralobular and intraduct;

• infiltrative.

Noninvasive breast cancers can be intralobular (lobular carcinoma in situ), and intraduct (ductal carcinoma in situ).

Infiltrating (invasive) cancer is seen as a varying levels of tissue and cell irregularities, which allowed to distinguish different level of malignancy. This type of cancer include, especially, infiltrating ductal and lobular carcinoma, which usually has got the structure of scirrhus, in addition to Paget's disease.

Causes of Breast Cancer.

The causes of breast cancer often are hormonal changes within the body: the entry into menopause, when there is an engaged restructuring with the hormonal regulation with the woman, the ovaries lose their activity, decreased output of progesterone and estrogen, the body is certainly going through, "hormonal crisis." The mammary gland and endometrium (lining in the uterus) are most understanding of these changes, the breast type tissue begins to dissolve and be replaced by fat.

Scientifically established how the female hormones estrogen-, plays an important role in the growth and development of cancer of the breast. The excess hormones inside the 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 how the birth and prolonged breastfeeding (a lot more than 1 year) to relieve the chance of developing breast cancer. On the other hand, abortion result in hormonal "explosion" in a very woman's body that may trigger the development of tumors. So far there's no consensus regarding the impact on the continuing development of tumors of hormonal contraceptive drugs, but it is considered that these drugs reduce the potential risk of developing cancer of the breast, but increase the chance of developing cancer from the female genital organs, and osteoporosis. In addition predisposition to cancer of the breast may cause harmful environmental factors: the planet, along with inflammatory diseases previously deferred breast - mastitis.

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

Benign breast diseases like fibrocystic breast disease, or fibroadenoz intraduct papillomatosis alone usually do not cause cancer, but as well, create an unfavorable background for its development.

The reason behind breast cancers will be the connection between 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 bring about cancer in the breast and female the reproductive system, having an excess dimply skin within the body, it will become a separate endocrine organ and starts to actively produce hormones-estrogens, whose action and provokes the continuing development of tumors.

Symptoms of Breast Cancer

There are some forms from the growth of breast cancer:

- Nodular form, the commonest, is seen as a a dense knot of 0.5 to 5 cm or more, it really is seen as a all with 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 two forms are characteristic warning signs of inflammation: pain in the breast, a bright red colorization with the skin it raises body temperature to 39 degrees C. In view of such symptoms often occur, and errors in diagnosing patients treated for inflammatory diseases, that are named and therefore are known as these forms breast cancers. When tubular carcinoma breast cancers cover as being a "skin" of the company's contracting and decreasing in size.

In some instances, breast cancers manifests within the form of metastases in the lymph nodes on the affected side, often doesn't detect the tumor itself - show hidden breast cancers.

For small tumors with the breast, any symptoms arise. The most observant as well as their husbands are able to detect tumor site inside the gland unintentionally, but in a large breast to detect small size hard knot. Revealed a knot can be painful when pressed, round, smooth and agile, this speaks and only a benign tumor. Signs of malignancy other: a good knot to touch the stone, its surface is uneven, it really is stationary or slightly shifted, could be firmly fixed for the surrounding tissue or skin, usually painless, can reach a significant size (over 3 to 5 cm and often 10-15 cm).

Need to evaluate the surface with the skin in the tumor: the malignant process will likely be observed retraction from the skin, buying within the folds, wrinkles, a symptom of "lemon peel" - a local swelling in the skin on the tumor, can be a direct tumor invasion to skin surface, then it will become a bright beautiful red colors and sprawl as "cauliflower."

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