Breast Cancer

Breast cancer is cancer that forms in tissues of the breast, usually the ducts (tubes that carry milk to the nipple) and lobules (glands that make milk). It occurs in both men and women, although male breast cancer is rare.

HER-2 Positive Breast Cancer

Human epidermal growth factor receptor 2 (HER2) is a gene that can play an important role in the development of some types of breast cancer. This gene is also sometimes referred to as Erc-B2 receptor tyrosine kinase 2 (ERBB2). This gene is involved in the production of HER2 proteins, which are present on breast cells as receptors to control the growth, division, and repair of the cells.

Pathophysiology of the Link Between Obesity and Breast Cancer

Types of Breast Cancer

Hormone Receptor Positive Breast Cancer

What is a Mammary Gland?

Radiotherapy for Breast Cancer

What is Ductal Carcinoma in Situ (DCIS)?

What is Breast Reconstruction?

Breast Cancer Epidemiology

Treating Breast Cancer Using Antibiotics

Breast Cancer Diagnosis

Breast Cancer Screening

See more featured articles »

Thermography versus Mammography: Which is Best?

What is Metastatic Breast Cancer?

PARP Inhibitors For Hard-To-Treat Cancers

Intraductal Papilloma - Benign Tumors of the Breast

Microcalcifications in Breast Cancer

Post-Mastectomy Pain

Axillary Lymph Nodes and Breast Cancer

The Importance of Hormone Status in Breast Cancer: A Guide to Hormone Dependent Breast Cancer (HDBC)

Breast Cancer Society and Culture

Surgery for Breast Cancer

Microwave Imaging for Breast Cancer Versus X-Ray Mammograms

Sentinel Lymph Nodes

What Does a Sentinel Node Biopsy Involve?

Breast Cancer Classification

Detecting breast cancer in dense breasts

Familial Breast Cancer

Breast Cancer Symptoms

What is the BRCA1 Gene?

Breast Cancer Causes

Radial Scar Diagnosis and Management

Treating Breast Oil Cysts

Chemotherapy for Breast Cancer

Living with Breast Cancer

Preventing Breast Cancer

Microwave Imaging for Breast Cancer: Procedure

A Guide to Checking your Breasts for Lumps

What is Invasive Ductal Breast Cancer?

History of Breast Cancer

Radial Scar of the Breast

What is Breast Cancer?

Breast Cancer Pathophysiology

Breast Cancer Awareness

Axillary Sampling and Sentinel Node Biopsy Comparison

What is the BRCA2 Gene?

What are Aromatase Inhibitors?

What is Triple Negative Breast Cancer?

What Does a Quadrantectomy Involve?

What is the HER2 Gene?

Breast Cancer Prognosis

Genetics of Breast Cancer

Breast Cancer Management

Gail Model (Breast Cancer Risk Assessment Tool)

Latest Breast Cancer News and Research

Artificial intelligence enhances radiologists’ accuracy in breast cancer detection

Artificial intelligence (AI) improves breast cancer detection accuracy for radiologists when reading screening mammograms, helping them devote more of their attention to suspicious areas, according to a study published today in Radiology, a journal of the Radiological Society of North America.

8 Jul 2025

KAIST scientists develop tool to fight drug resistance in cancer

One of the biggest obstacles in cancer treatment is drug resistance in cancer cells. Conventional efforts have focused on identifying new drug targets to eliminate these resistant cells, but such approaches can often lead to even stronger resistance.

8 Jul 2025

Metabolic enzyme PHGDH found to play a surprising role in breast cancer immunity

Macrophages are immune cells with a split personality: some fight tumors, while others help them grow. In breast cancer, most macrophages fall into the latter camp—dubbed M2-like—fueling tumor progression and dampening immune responses.

7 Jul 2025

Excess weight linked to breast cancer risk in postmenopausal women with cardiovascular disease

New research reveals that excess weight is linked to an especially high risk of developing breast cancer in postmenopausal women with cardiovascular disease.

7 Jul 2025

Preeclampsia in pregnancy reduces risk of some cancers but raises endometrial cancer odds

Women with preeclampsia in their first pregnancy had a lower risk of developing breast, cervical, and lung cancer later in life, but a higher risk of endometrial cancer. The large Nordic cohort study also found that siblings of women with PE had a modestly reduced risk of cancer, particularly lung cancer.

7 Jul 2025

Amino acid metabolism in breast cancer as a driver of disease and therapeutic target

The review introduces the molecular subtypes of breast cancer and outlines how altered amino acid metabolism supports tumor growth.

7 Jul 2025

Evolutionary mutation weakens human immune response to solid tumors

New research from UC Davis Comprehensive Cancer Center has uncovered an evolutionary change that may explain why certain immune cells in humans are less effective at fighting solid tumors compared to non-human primates.

3 Jul 2025

Confusion persists over breast cancer screening guidelines

Mammograms can find cancer early before symptoms appear. Regular screening decreases the risk of dying from breast cancer.

3 Jul 2025

Measuring tumor force offers new clues for brain cancer treatment

As brain tumors grow, they must do one of two things: push against the brain or use finger-like extensions to invade and destroy surrounding tissue.

3 Jul 2025

HHS eliminates CDC staff who made sure birth control is safe for women at risk

For Brianna Henderson, birth control isn’t just about preventing pregnancy.

1 Jul 2025

Rarely studied RNA linked to triple-negative breast cancer

Breast cancer is one of the most common cancers among women in the United States. Thanks to decades of fundamental research, it's also one of the most curable.

1 Jul 2025

Study links hormone therapy to breast cancer risk in younger women

Scientists at the National Institutes of Health (NIH) have found that two common types of hormone therapy may alter breast cancer risk in women before age 55.

1 Jul 2025

Caltech researchers develop safer and smarter breast imaging technique

A Caltech-led team has developed a safe, effective, and painless breast imaging technique that incorporates machine learning to help differentiate between suspicious and healthy tissue.

30 Jun 2025

VIRMA protein regulates brain development by controlling ribosome biogenesis

Ribosomes are tiny molecular machines inside all living cells that build proteins, and ribosome biogenesis is the complex, multi-step process by which they are made.

30 Jun 2025

Targeting mitochondrial dynamics to combat breast cancer metastasis

Breast cancer, particularly triple-negative breast cancer (TNBC), remains a leading cause of cancer-related mortality due to its aggressive nature and limited therapeutic targets.

27 Jun 2025

Removing modest fee boosts access to 3D mammography among underserved groups

A new study by UCLA researchers shows that removing a modest $45 out-of-pocket fee significantly improved access to digital breast tomosynthesis (3D mammography), an advanced breast cancer screening technology.

27 Jun 2025

New 3D printed breast tissue model sheds light on milk production

Human breast milk is uniquely adapted to meet an infant's nutritional needs. Surprisingly, we still know very little about how milk is even made in the breast.

27 Jun 2025

Mayo Clinic researchers discover how ovarian cancer may begin

Little is known about what causes ovarian cancer, and there is no way to detect it early yet. About 75% of the time when someone is diagnosed with ovarian cancer, it has already progressed to stage 3 or stage 4, which means it has spread to other parts of the body.

24 Jun 2025

New AI tool characterizes the diversity of individual cells within tumors

A multinational team of researchers, co-led by the Garvan Institute of Medical Research, has developed and tested a new AI tool to better characterize the diversity of individual cells within tumors, opening doors for more targeted therapies for patients.

24 Jun 2025

New DNA test predicts chemotherapy resistance in cancer patients

Cancer Research UK-funded scientists at the University of Cambridge, in collaboration with the Spanish National Cancer Research Centre (CNIO) and Cambridge-based startup Tailor Bio, have created a test which can successfully predict whether cancer will resist common forms of chemotherapy treatment.

23 Jun 2025