Types of Breast Cancer

Triple-Negative Breast Cancer Risk Factors

Triple-negative breast cancer (TNBC) tests negative for estrogen, progesterone, and HER2 receptors. Although TNBC responds to chemotherapy treatments, there have not been effective targeted treatments for …

Basics of Triple Negative Breast Cancer

Triple negative breast cancer cells have no receptors for estrogen, progesterone, or HER2 protein. This type of breast cancer tends to be aggressive and survival rates are lower than average. Learn who is more at risk, and how triple negative breast cancer is treated.

Types of Breast Cancer

An overview of the main types of breast cancer: ductal, lobular, invasive, inflammatory, and Paget's disease. Each type is described and treatment and prognosis are discussed.

Adenoid Cystic Carcinoma of the Breast

Adenoid cystic carcinoma of the breast is rare. Usually not aggressive, this type of breast cancer has a good chance of recovery after treatment. Learn about diagnosis and treatment for adenoid cystic breast carcinoma.

Angiosarcoma of the Breast

Angiosarcoma of the breast is a rarely diagnosed type of breast cancer. It can grow and spread quickly, and may affect many organs in your body. Learn the symptoms, tests to diagnose, and treatments for angiosarcoma of the breast.

Ductal Carcinoma In Situ - DCIS

A description and definition of ductal carcinoma in situ, with signs and symptoms, diagnostic tests, staging, and treatment.

Gynecomastia: Prominent Male Breasts

Gynecomastia is a benign male breast condition in which a male has one or two prominent breasts. It is not considered to increase a man's risk of developing male breast cancer. Gynecomastia is not the same as Klinefelter syndrome, but it is one of the symptoms of Klinefelter's.

Inflammatory Breast Cancer - IBC

Definition and description of IBC - Inflammatory Breast Cancer, and how it is related to, and different from, ductal and lobular breast cancer.

Invasive (Infiltrating) Breast Cancer

Invasive, or infiltrating, breast cancer has the potential to spread out of the original tumor site and invade other parts of your breast and body. There are several types and subtypes of invasive breast cancer.

Invasive Ductal Carcinoma - IDC Breast Cancer

Invasive Ductal Carcinoma (IDC) is the most common type of breast cancer. It begins in the milk ducts and invades nearby breast tissue. Learn more about signs, symptoms, and treatments for invasive ductal carcinoma.

Invasive Lobular Carcinoma – ILC Breast Cancer

Invasive Lobular Carcinoma (ILC) is a type of breast cancer that starts in the lobules of your breast, where milk is produced. Invasive Lobular Carcinoma does not always feel like a breast lump, because it may grow in a web-like mass. Learn about the symptoms, diagnosis and treatment for Invasive Lobular Carcinoma.

Klinefelter syndrome 47,XXY

Klinefelter syndrome is a rare genetic condition in which a man has an extra X chromosome. (Males usually have one X and one Y chromosome.) Some of the other conditions associated with Klinefelter are hypothyroidism, infertility, testicular cancer, and an increased risk for male breast cancer.

Lobular Carcinoma in situ - LCIS

A definition and description of lobular carcinoma in situ, with signs and symptoms, and treatment.

Male Breast Cancer Overview

Men are not exempt from developing breast cancer. It is much more rare in men, but since both males and females carry some breast tissue, men need to be aware of their own risk of breast cancer, and the most common types of male breast cancer.

Male Breast Self Exam

Men who are at high risk for breast cancer can benefit from doing a male breast self exam on a regular basis. If breast cancer runs in your family, or you carry the BRCA1 or BRCA2 gene, you have a higher risk of developing male breast cancer.

Male breast self examination (MBSE) should be performed each month. Knowing your overall health -- and what your breast normally feels like -- is the be…

Medullary Carcinoma – Invasive Breast Cancer

Medullary carcinoma of the breast is a less common form of invasive breast cancer. It starts in your milk ducts, with large cancer cells that look very different from healthy cells. Survival rates for this type of breast cancer are very good. Learn more about medullary carcinoma of the breast.

Metaplastic Breast Cancer

Metaplastic breast cancer is a rare form of breast cancer that is often treated aggressively and has uncertain prognosis. Learn more about diagnosis and treatment for metaplastic breast cancer.

Metastatic Breast Cancer - How Breast Cancer Spreads

Breast cancer can metastasize, or spread, from your tumor site to other parts of your body by traveling through your blood stream or lymph system. But if it is caught early and treated, even metastatic breast cancer can be managed like a chronic disease, and more patients are living longer after their diagnosis. Learn more about metastatic breast cancer.

Metastatic Breast Cancer - Statistics, Diagnosis, Treatment Options

Metastatic breast cancer is diagnosed when cells from the original breast tumor have spread beyond your breast to other parts of your body. Dr. William Gradishar, an oncologist at Feinberg School Medicine at Northwestern University in Chicago, gives some statistics and treatment options for metastatic breast cancer.

Mucinous (Colloid) Carcinoma of the Breast

Mucinous (colloid) carcinoma is a rare type of invasive breast cancer that is formed when cancer cells within your breast produce mucous. Most mucinous carcinomas of the breast are estrogen-receptor positive and HER2/neu negative. This type of breast cancer rarely spreads to your lymph nodes. Learn more about symptoms and diagnosis of mucinous carcinoma of the breast.

Paget’s Disease of the Nipple

Paget’s Disease of the nipple or breast is a rare type of breast cancer, which can occur in women and men. It shows up in and around the nipple, and usually signals the presence of breast cancer beneath the skin.

Papillary Carcinoma of the Breast

Papillary Carcinoma is a type of ductal carcinoma in situ (DCIS). This type of breast cancer is rarely invasive, and usually stays within the milk ducts of your breast. It has a good chance of recovery after treatment.

Phyllodes Tumor - Cystosarcoma Phyllodes – Breast Cancer Tumor

Phyllodes tumor is a very rare type of breast tumor, which can be benign (harmless) or malignant (cancerous). This type of tumor is called a "sarcoma," because it occurs in the connective tissue (stroma) of your breast. Learn more about Phyllodes tumor, its symptoms, diagnosis and treatment.

Tubular Carcinoma of the Breast

Tubular carcinoma is a rare type of invasive ductal carcinoma of the breast. Tubular carcinomas tend to be small, estrogen-receptor positive, HER2/neu negative. Your chance of recovery and survival after treatment for a tubular carcinoma is very good.

What Are Some Inflammatory Breast Cancer Impostors?

Inflammatory breast cancer (IBC) is a rare and very aggressive form of breast cancer. Early detection is critical to proper treatment and survival. So why is IBC often mistaken for other conditions? Learn what the IBC impostors are.