What area of the breast are most cancers found?

Which quadrant of the breast is most common for cancer?

Many studies have shown that the upper outer quadrant of the breast is the most frequent site for occurrence of breast cancer [22–24]. A study [23] consisting of 746 consecutive breast core biopsies noted 62% of 349 malignant lesions (95% confidence interval 57-67%) arose from the UO quadrant.

Where are most breast tumors located?

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

Where are most breast cancers found in a woman?

Breast cancer most often begins with cells in the milk-producing ducts (invasive ductal carcinoma). Breast cancer may also begin in the glandular tissue called lobules (invasive lobular carcinoma) or in other cells or tissue within the breast.

Which quadrant of the breast is least common for cancer?

Tumour location within the breast varies with the highest frequency in the upper outer quadrant (UOQ) and lowest frequency in the lower inner quadrant (LIQ).

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Is breast cancer more common in left breast?

Breast cancer is more common in the left breast than the right. The left breast is 5 – 10% more likely to develop cancer than the right breast. The left side of the body is also roughly 5% more prone to melanoma (a type of skin cancer). Nobody is exactly sure why this is.

What are signs of breast cancer other than lumps?

Other symptoms besides a lump that warn of breast cancer include:

  • a nipple that turns inward (retraction)
  • redness, scaling, or thickening of the nipple.
  • a change in the texture of the skin on the breast.
  • clear or bloody discharge from the nipple, or a milky discharge if you’re not breastfeeding.
  • dimpled skin on the breast.

Where are breast cysts usually located?

Breast cysts may be found in one or both breasts. Signs and symptoms of a breast cyst include: A smooth, easily movable round or oval lump that may have smooth edges — which typically, though not always, indicates it’s benign.

Where is the upper outer quadrant of breast?

The outer left breast is at 3 o’clock and the outer right breast is at 9 o’clock. In the left breast the upper outer quadrant is between 12 and 3 o’clock. The radiologist will also describe the size and location of a finding by indicating the distance from the nipple in centimeters.

What do cancerous lumps in breast feel like?

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.

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What kind of breast lump should I worry about?

Lumps that feel harder or different from the rest of the breast (or the other breast) or that feel like a change are a concern and should be checked. This type of lump may be a sign of breast cancer or a benign breast condition (such as a cyst or fibroadenoma).

How can you tell if a lump is cancerous?

Bumps that are cancerous are typically large, hard, painless to the touch and appear spontaneously. The mass will grow in size steadily over the weeks and months. Cancerous lumps that can be felt from the outside of your body can appear in the breast, testicle, or neck, but also in the arms and legs.

Does breast tumor move around?

Do breast cancer lumps move? Most lumps will be movable within the breast tissue on examination, but breast lumps typically do not “move” around the breast. However, sometimes a breast lump will be fixed, or stuck, to the chest wall.