In most cases, breast cancer tissues develop with precancerous changes. This is mainly benign dysplasia of the mammary glands and papilloma ducts. Breast cancer tissues occur in diffuse and nodular macroscopic forms, as well as cancer of the nipple and nipple area.
The histological structure includes the following types of breast cancer tissues and human tissue samples:
• noninvasive: intralobular and intraductal.
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Non-invasive breast cancer tissues can be intralobular (lobular carcinoma in situ) and intraductal (ductal carcinoma in situ).
Infiltrative (invasive) cancer is characterized by varying degrees of tissue and cellular abnormalities, which allow different degrees of malignancy to be distinguished.
The female hormone estrogen has been scientifically proven to play a key role in the development of breast cancer. An excess of hormones in the body provides a favorable background for the development of the disease.
Causes of breast cancer tissues – Breast cancer is often caused by hormonal changes in the body: During menopause, when a woman's hormonal regulation is actively restructured, the ovaries lose their activity, reducing progesterone and estrogen production, body goes into a "hormonal crisis".
However, these drugs are believed to lower the risk of developing breast cancer tissues but increase the risk of developing female genital cancer and osteoporosis. In addition, the predisposition to breast cancer tissues can lead to dangerous environmental factors: the environment, as well as inflammatory diseases that previously precipitated in breast mastitis.