An illustration of breast cancer
Mammography
Breast cancer showing an inverted nipple, lump, and skin dimpling
Illustration of a mammogram
Early signs of possible breast cancer
A mobile mammography unit in New Zealand
Tumor in the breast visualized by Breast-Computertomography (Breast-CT)
Normal (left) versus cancerous (right) mammography image
All types of alcoholic beverages, including beer, wine, or liquor, cause breast cancer.
Ducts and lobules, the main locations of breast cancers
Overview of signal transduction pathways involved in programmed cell death. Mutations leading to loss of this ability can lead to cancer formation.
Histopathologic types of breast cancer, with relative incidences and prognoses
A mobile breast cancer screening unit in New Zealand
Chest after right breast mastectomy
Internal radiotherapy for breast cancer
Breasts after double mastectomy followed by nipple-sparing reconstruction with implants
An extreme example of an advanced recurrent breast cancer with an ulcerating axillary mass
Breast cancer surgery in 18th century
Radical mastectomy, Halsted's surgical papers
The pink ribbon is a symbol to show support for breast cancer awareness.
MRI showing breast cancer
Excised human breast tissue, showing an irregular, dense, white stellate area of cancer 2cm in diameter, within yellow fatty tissue
High-grade invasive ductal carcinoma, with minimal tubule formation, marked pleomorphism, and prominent mitoses, 40x field
Micrograph showing a lymph node invaded by ductal breast carcinoma, with an extension of the tumor beyond the lymph node
Neuropilin-2 expression in normal breast and breast carcinoma tissue
F-18 FDG PET/CT: A breast cancer metastasis to the right scapula
Needle breast biopsy
Elastography shows stiff cancer tissue on ultrasound imaging.
Ultrasound image shows irregularly shaped mass of breast cancer.
Infiltrating (invasive) breast carcinoma
Mammograms showing a normal breast (left) and a breast with cancer (right)
Stage T1 breast cancer
Stage T2 breast cancer
Stage T3 breast cancer
Metastatic or stage 4 breast cancer
Stage 1A breast cancer
Stage 1B breast cancer
Stage 2A breast cancer
Stage 2A breast cancer
Stage 2B breast cancer
Stage 2B breast cancer
Stage 2B breast cancer
Stage 3A breast cancer
Stage 3A breast cancer
Stage 3A breast cancer
Stage 3B breast cancer
Stage 3B breast cancer
Stage 4 breast cancer

The goal of mammography is the early detection of breast cancer, typically through detection of characteristic masses or microcalcifications.

- Mammography

A 2013 Cochrane review found that it was unclear if mammographic screening does more harm than good, in that a large proportion of women who test positive turn out not to have the disease.

- Breast cancer
An illustration of breast cancer

5 related topics

Alpha

A drawing of mastitis from the early 1900s

Mastitis

Inflammation of the breast or udder, usually associated with breastfeeding.

Inflammation of the breast or udder, usually associated with breastfeeding.

A drawing of mastitis from the early 1900s
An ultrasound image of puerperal mastitis
Mastitis localized on the underside of the breast, with a large area of inflammation.
Udder of a Roux du Valais sheep after a healed mastitis; one teat was lost due to the disease.
Serous exudate from bovine udder in E. coli mastitis<ref>{{cite journal | author = Kandasamy S, Green BB, Benjamin AL, Kerr DE | date = Dec 2011 | title = Between-cow variation in dermal fibroblast response to lipopolysaccharide reflected in resolution of inflammation during Escherichia coli mastitis | journal = J. Dairy Sci. | volume = 94 | issue = 12| pages = 5963–75 | doi = 10.3168/jds.2011-4288 | pmid = 22118085 }}</ref> at left. Normal milk at right.
Gangrenous mastitis in a dairy cow.
Cat suffering from mastitis

Mammograms or breast biopsies are normally performed on women who do not respond to treatment or on non-breastfeeding women.

Lifetime risk for breast cancer is significantly reduced for women who were pregnant and breastfeeding.

Malignant tumor (right) spreads uncontrollably and invades the surrounding tissues; benign tumor (left) remains self-contained from neighbouring tissue

Malignancy

Tendency of a medical condition to become progressively worse.

Tendency of a medical condition to become progressively worse.

Malignant tumor (right) spreads uncontrollably and invades the surrounding tissues; benign tumor (left) remains self-contained from neighbouring tissue

In cases where there is no obvious representation of a lump, a mammogram or an MRI test can be used to determine the presence of a tumour.

The 15-49-year-old age bracket most common form of malignancy is breast cancer with liver and lung cancer following.

Jan Baptist van Helmont (left) and his son Franciscus-Mercurius from the Ortus medicinae (1648)

United States Preventive Services Task Force

Independent panel of experts in primary care and prevention that systematically reviews the evidence of effectiveness and develops recommendations for clinical preventive services".

Independent panel of experts in primary care and prevention that systematically reviews the evidence of effectiveness and develops recommendations for clinical preventive services".

Jan Baptist van Helmont (left) and his son Franciscus-Mercurius from the Ortus medicinae (1648)

In 2009, the USPSTF updated its advice for screening mammograms.

Screening mammograms, or routine mammograms, are X-rays given to apparently healthy women with no symptoms or evidence of breast cancer in the hope of detecting the disease in an early, easily treatable stage.

A woman having a mammogram

Breast cancer screening

A woman having a mammogram
A pictorial example of breast self-examination in six steps. Steps 1-3 involve visual inspection of the breasts with the arms in different positions. Step 4 is palpation of the breast. Step 5 is palpation of the nipple. Step 6 is palpation of the breast while lying down.
Normal (left) versus cancerous (right) mammography image.
Two mammograms of normal dense breasts.

Breast cancer screening is the medical screening of asymptomatic, apparently healthy women for breast cancer in an attempt to achieve an earlier diagnosis.

Universal screening with mammography is controversial as it may not reduce all-cause mortality and may cause harms through unnecessary treatments and medical procedures.

Morphology of human female breasts with the areola, nipple, and inframammary fold

Dense breast tissue

Condition of the breasts where a higher proportion of the breasts are made up of glandular tissue and fibrous tissue than fatty tissue.

Condition of the breasts where a higher proportion of the breasts are made up of glandular tissue and fibrous tissue than fatty tissue.

Morphology of human female breasts with the areola, nipple, and inframammary fold

Around 40–50% of women have dense breast tissue and one of the main medical components of the condition is that mammograms are unable to differentiate tumorous tissue from the surrounding dense tissue.

This increases the risk of late diagnosis of breast cancer in women with dense breast tissue.