Mastitis in Dogs: PostPartum Affection of Female Dogs

breast cancer on dogs Mastitis in Dogs: PostPartum Affection of Female Dogs
Breast Cancer

Among all cancers in women, he takes consumers. In most cases, breast cancers 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, as well as cancer from the nipple as well as the nipple from the field (Paget's disease in the breast). For the nodular cancers are seen as an the node creating a diameter all the way to several centimeters. In certain instances, a tight knot, is permeated with whitish layers tissue penetrating to the surrounding fat, in others - a soft, juicy around the cut, splits easily. Diffuse cancer of the prostate is roofed for the considerable distance, the contours with the tumor are marked bad. Sometimes the cancer invades the skin and forms about 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 covered using a dense shell.

In histological structure are the following forms of cancer of the breast:

• noninvasive: intralobular and intraduct;

• infiltrative.

Noninvasive cancer of the breast may be intralobular (lobular carcinoma in situ), and intraduct (ductal carcinoma in situ).

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

Causes of Breast Cancer.

The factors behind breast cancers often are hormonal changes within the body: the entry into menopause, when there is an engaged restructuring in the hormonal regulation with the woman, the ovaries lose their activity, decreased manufacture of progesterone and estrogen, the body is going through, "hormonal crisis." The mammary gland and endometrium (lining in the uterus) are most attentive to these changes, the breast growth actually starts to dissolve and stay replaced by fat.

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

In addition, patients which has a group of first-degree relatives with breast cancer (mothers and sisters) probability of creating a tumor increasing by a lot more than half - familial varieties of cancer.

Benign breast diseases for example fibrocystic breast disease, or fibroadenoz intraduct papillomatosis alone usually do not lead to cancer, but concurrently, create an unfavorable background for the development.

The reason behind breast cancers 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 result in cancer from the breast and female reproductive system, by having an excess fat within the body, it will become another endocrine organ and starts 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 cancer:

- Nodular form, the most common, is characterized by a dense knot of 0.5 to 5 cm or higher, it can be seen as all from the following symptoms;

- Diffuse. All of them are very aggressive, grow quickly, almost lightning speed, the tumor without having clear boundaries, "spreading" with the breast and skin. For the first couple of forms are characteristic signs and symptoms of inflammation: pain from the breast, a bright beautiful red colors from the skin it raises temperature to 39 degrees C. In view of these symptoms often occur, and errors in carried out patients treated for inflammatory diseases, that are named and are known these forms breast cancers. When tubular carcinoma cancer of the breast cover being a "skin" of the contracting and decreasing in size.

In certain instances, breast cancers manifests inside the form of metastases inside lymph nodes around the affected side, often does not detect the tumor itself - show hidden cancer of the breast.

For small tumors in the breast, any symptoms arise. The most observant women and their husbands are able to detect tumor site in the gland accidentally, 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 in support of a benign tumor. Signs of malignancy other: a tight knot to touch the stone, its surface is uneven, it's stationary or slightly shifted, can be firmly fixed towards the surrounding tissue or skin, usually painless, can reach an important size (more than 3 - 5 cm and infrequently 10-15 cm).

Need to gauge the surface in the skin within the tumor: the malignant process will be observed retraction with the skin, collecting within the folds, wrinkles, an indication of "lemon peel" - a neighborhood swelling from the skin over the tumor, can be a direct tumor invasion to your skin layer surface, then it becomes a bright beautiful red colors and sprawl as "cauliflower."

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