What is breast cancer According to who?

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Who define breast cancer?

Breast cancer arises in the lining cells (epithelium) of the ducts (85%) or lobules (15%) in the glandular tissue of the breast. Initially, the cancerous growth is confined to the duct or lobule (“in situ”) where it generally causes no symptoms and has minimal potential for spread (metastasis).

What is breast cancer medical definition?

Breast cancer: Cancer of the tissue containing or involving the milk glands (mammary tissue).

Where is most breast cancer located?

Breast cancer can occur anywhere in the breast, but the most common location is the upper, outer section of the breast.

What are the two types of breast cancer?

The most common types are invasive ductal carcinoma and invasive lobular carcinoma. Invasive ductal carcinoma makes up about 70-80% of all breast cancers.

What is female breast cancer?

Breast cancer is a disease in which cells in the breast grow out of control. There are different kinds of breast cancer. The kind of breast cancer depends on which cells in the breast turn into cancer. Breast cancer can begin in different parts of the breast.

What is the normal breast shape?

1-9 What is the shape of the normal breast? The breast is shaped like a pear and the tail of breast tissue extends under the arm. Some women have breast tissue that can be felt in the armpit. This may be more noticeable during pregnancy.

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What does the pain feel like when you have breast cancer?

A cancerous lump may feel rounded, soft, and tender and can occur anywhere in the breast. In some cases, the lump can even be painful. Some women also have dense, fibrous breast tissue. Feeling lumps or changes in your breasts may be more difficult if this is the case.

What does the beginning of breast cancer look like?

A new mass or lump in breast tissue is the most common sign of breast cancer. The ACS report that these lumps are usually hard, irregular in shape, and painless. However, some breast cancer tumors can be soft, round, and tender to the touch.