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.

What Does a Quadrantectomy Involve?

What is Ductal Carcinoma in Situ (DCIS)?

Breast Cancer Society and Culture

Breast Cancer Awareness

Treating Breast Oil Cysts

History of Breast Cancer

What is Triple Negative Breast Cancer?

What is the HER2 Gene?

Detecting breast cancer in dense breasts

Preventing Breast Cancer

Intraductal Papilloma - Benign Tumors of the Breast

See more featured articles »

Microcalcifications in Breast Cancer

Radial Scar of the Breast

Breast Cancer Epidemiology

Breast Cancer Diagnosis

Surgery for Breast Cancer

Pathophysiology of the Link Between Obesity and Breast Cancer

Types of Breast Cancer

Breast Cancer Symptoms

Breast Cancer Management

Genetics of Breast Cancer

Gail Model (Breast Cancer Risk Assessment Tool)

Breast Cancer Causes

What is Breast Reconstruction?

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

What are Aromatase Inhibitors?

Microwave Imaging for Breast Cancer Versus X-Ray Mammograms

What is a Mammary Gland?

Post-Mastectomy Pain

Sentinel Lymph Nodes

Radiotherapy for Breast Cancer

Axillary Lymph Nodes and Breast Cancer

Axillary Sampling and Sentinel Node Biopsy Comparison

What is the BRCA1 Gene?

Familial Breast Cancer

What is Breast Cancer?

Microwave Imaging for Breast Cancer: Procedure

Breast Cancer Pathophysiology

Living with Breast Cancer

A Guide to Checking your Breasts for Lumps

Thermography versus Mammography: Which is Best?

What is the BRCA2 Gene?

Breast Cancer Prognosis

Hormone Receptor Positive Breast Cancer

Breast Cancer Classification

Treating Breast Cancer Using Antibiotics

PARP Inhibitors For Hard-To-Treat Cancers

Chemotherapy for Breast Cancer

What is Metastatic Breast Cancer?

What is Invasive Ductal Breast Cancer?

Radial Scar Diagnosis and Management

Breast Cancer Screening

What Does a Sentinel Node Biopsy Involve?

Latest Breast Cancer News and Research

Vitamin D deficiency linked to higher postoperative breast cancer pain

Vitamin D deficiency is associated with more moderate to severe pain following breast cancer surgery and an increased consumption of opioid drugs, finds research published online in the journal Regional Anesthesia & Pain Medicine.

19 May 2026

Molecular profiling initiative seeks to uncover late breast cancer recurrence mysteries

The ECOG-ACRIN Cancer Research Group (ECOG-ACRIN), in collaboration with the SWOG Cancer Research Network (SWOG), has launched a new initiative to analyze paired original and recurrent tumor specimens from two practice-changing breast cancer clinical trials.

19 May 2026

Young cancer survivors frequently report long-term sexual problems

Many young adults who have been treated for cancer experience sexual problems. This is shown in a doctoral dissertation at Karolinska Institutet, which also highlights gaps in information provided by the healthcare system.

19 May 2026

Common allergy medication may also help fight aggressive cancers

A drug widely used to treat asthma and allergies may also help fight aggressive cancers, reports a new Northwestern Medicine study that uncovered how tumors hijack common white blood cells to evade immunotherapy.

19 May 2026

DNA-guided CRISPR system targets RNA and expands Cas12 beyond gene editing

Researchers developed ΨDNA, a DNA-based CRISPR guide that allows Cas12 enzymes to target RNA with high specificity while retaining compatibility with DNA-editing workflows. The platform detected HCV RNA in clinical samples and enabled programmable RNA knockdown, multiplex targeting, and RNA modification in human cells.

18 May 2026

Blood test detects tumor DNA to guide advanced cancer treatment

A blood test that detects tumor DNA circulating in the bloodstream may help select the most effective treatment options for cancer patients whose tumors have started to spread, according to one of the largest randomized controlled trials of its kind presented at the Congress of the European Society for Radiotherapy and Oncology (ESTRO 2026).

18 May 2026

Research offers clearer genetic blueprint of breast cancer variants

A study led by Dr Jason Pitt, Principal Investigator at the Cancer Science Institute of Singapore (CSI Singapore), has identified eight new "signatures" of DNA patterns (gains and/or losses) in breast cancer.

18 May 2026

Targeted radiotherapy may delay progression in metastatic breast cancer patients

Treating breast cancer that has begun to spread around the body with targeted radiotherapy could help patients to live longer without their cancer getting worse, according to the results of a small randomised controlled trial presented at the Congress of the European Society for Radiotherapy and Oncology (ESTRO 2026).

17 May 2026

How exercise influences cancer cell viability

This interview uncovers how exercise may reduce cancer cell viability, with insights into adipose interactions and innovative 3D culture systems.

From Promega Corporation 15 May 2026

Study reveals why aging makes the body more vulnerable to breast cancer

Researchers at Georgetown's Lombardi Comprehensive Cancer Center have identified a mechanism that may help explain a key reason why older people experience worse outcomes from breast cancer.

15 May 2026

Researchers develop pH and redox-sensitive systems to reduce immunotherapy toxicity

Although cancer immunotherapy has transformed treatment by harnessing the immune system to eliminate tumors, only a small subset of patients benefit. Many solid tumors remain "cold," characterized by poor immune cell infiltration and resistance to immune checkpoint blockade (ICB).

15 May 2026

Gene panel predicts chemotherapy response in triple-negative breast cancer

Researchers at The University of Texas MD Anderson Cancer Center have characterized cancer cell-specific features in the tumor microenvironment (TME) of early-stage triple-negative breast cancer (TNBC) tissues, identifying specific macrophage subtypes associated with chemotherapy response.

13 May 2026

Adult weight gain strongly linked to higher obesity-related cancer risk

New research presented at this year's European Congress on Obesity (ECO 2026) in Istanbul, Turkey (12-15 May) shows that people who gain the highest amount of weight across adulthood are at greatly increased risk of certain obesity related cancers.

13 May 2026

Could GLP-1 drugs help breast cancer patients live longer?

A large retrospective cohort study of adult female breast cancer patients found that GLP-1 receptor agonist use was associated with better all-cause survival and recurrence-free survival in patients with obesity or type 2 diabetes. The strongest associations were seen versus non-use in obesity and versus insulin or metformin in type 2 diabetes, while comparisons with SGLT2 inhibitors were less consistent and require further study.

12 May 2026

Cedars-Sinai develops AI tool for faster and cheaper tumor analysis

A team led by Cedars-Sinai Health Sciences University investigators has created a faster, cheaper way to determine the genes expressed in cancerous tumors.

12 May 2026

New study reveals how slow-growing cells drive breast cancer relapse

A new study by the Garvan Institute of Medical Research has uncovered a hidden mechanism explaining why breast cancer can return many years after successful treatment.

11 May 2026

Copper-based nanoplatform shows promise against metastatic tumor growth

What happens if cancer cells lose both their mitochondrial energy supply and their glycolytic backup system? This question is central to a new study published in Research by researchers from Northwestern Polytechnical University and collaborating institutions.

10 May 2026

The power of organoids in speeding up lifesaving drug development

Organoids are miniature tissue or organ models formed by stem cells (including pluripotent stem cells, tissue-specific adult stem cells, etc.) or progenitor cells in an in vitro three-dimensional culture system, which possess structural features and partial functions analogous to their corresponding in vivo organs. In 2009, the Hans Clevers laboratory developed the first intestinal organoid, marking the inception of organoid-based disease modeling.

8 May 2026

Chromosome abnormalities may help cancer cells resist treatment and spread

A new study led by NYU Langone Health researchers found that cancer cells are better able to resist treatments when they have an abnormal number of chromosomes, which are DNA strands wound up in bundles that control which genetic instructions are followed in each cell type.

7 May 2026

Advancing Menopause Care: Non-Hormonal Treatments for Vasomotor Symptoms

Menopause symptoms like hot flushes can be debilitating. Dr. Katie Barber highlights new treatments, including fezolinetant, for improved patient care.

7 May 2026