Where on the breast are most cancers located? Most breast cancers develop in the upper outer quadrant of the breast, closest to the armpit. This is because this area has a lot of glandular tissue.
What area of the breast are lumps frequently found? Commonly developing from the mammary glands or ducts, such malignant lumps generally (about 50 percent) appear in the upper, outer quadrant of the breast, extending into the armpit, where tissue is thicker than elsewhere.
What does a cancerous lump 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.
Do cancerous breast lumps move? Both benign and malignant masses can be rounded and mobile. Only when cancers are quite advanced are they fixed to skin or the underlying chest wall, and not moveable. Any new, persistent, or changing lump in your breast should be evaluated by your physician.