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UC Davis Comprehensive Cancer Center

UC Davis Comprehensive Cancer Center

Breast Cancer

News & Features

Lisa, breast cancer survivor 

Breast cancer survivor shares story  

Participating in surgical and radiotherapy clinical trials gives breast cancer survivor chance to help others.


New Patient Support

Peer Navigator Program 

Peer Navigator Program provides one-to-one peer support  

This special program matches newly diagnosed breast cancer patients with  breast cancer survivors.

Related Resources

breast cancer cellBreast cancer is the most common type of cancer among women in the United States other than skin cancer and is second only to lung cancer as a cause of cancer death in American women. An estimated 234,190 new cases of invasive breast cancer are diagnosed each year. Over the past several years, however, deaths from breast cancer have decreased a little bit every year as cancer prevention, detection and treatment options have improved.

The UC Davis Breast Cancer Program provides comprehensive, multidisciplinary care for patients with all stages of breast cancer. Breast cancer patients have access to numerous clinical trials of new innovative therapies. Patients receive all of their care in one location, from a team of top academic physicians. Our team includes specialists in:

Clinical Trials at UC Davis Comprehensive Cancer Center
UC Davis Comprehensive Cancer Center has a large clinical trials network. The close collaboration among our doctors and our research scientists means that new drugs and treatments developed in the laboratory can quickly move to the clinic, offering our patients immediate access to the latest therapies.

The National Cancer Institute has an on-line booklet called "What You Need To Know About Breast Cancer".

Risk Factors

No one knows the exact causes of breast cancer. People who think they may be at risk should discuss this with their doctor. Risk factors for breast cancer include the following:

  • Older age
  • Menstruating at an early age
  • Older age at first birth or never having given birth
  • A personal history of breast cancer or benign (non-cancer) breast disease
  • A mother or sister with breast cancer
  • Treatment with radiation therapy to the breast/chest
  • Breast tissue that is dense on a mammogram
  • Taking hormones such as estrogen and progesterone
  • Drinking alcoholic beverages
  • Being white

Sources: National Cancer Institute and UC Davis Comprehensive Cancer Center 

Signs and Symptoms

Early breast cancer usually doesn't cause symptoms. But as the tumor grows, it can change how the breast looks or feels. The common changes include:

  • A lump or thickening in or near the breast or in the underarm area
  • A change in the size or shape of the breast
  • Dimpling or puckering in the skin of the breast
  • A nipple turned inward into the breast
  • Discharge (fluid) from the nipple, especially if it's bloody
  • Scaly, red, or swollen skin on the breast, nipple, or areola (the dark area of skin at the center of the breast). The skin may have ridges or pitting so that it looks like the skin of an orange.

If you have any of these symptoms, you should tell your doctor so that the problems can be diagnosed and treated.

Sources: National Cancer Institute and UC Davis Comprehensive Cancer Center 


UC Davis Comprehensive Cancer Center recommends that women have regular clinical breast exams and mammograms to help find breast cancer early. Treatment is more likely to work well when breast cancer is detected early.

Clinical Breast Exam

During a clinical breast exam, your doctor looks for differences in size or shape between your breasts and checks for rashes, dimpling, or other abnormal signs. Using the pads of the fingers to feel for lumps, your doctor will check your entire breast, underarm, and collarbone area. A lump is generally the size of a pea before anyone can feel it. The exam is done on one side and then the other. Your doctor will also check the lymph nodes near the breast to see if they are enlarged.

If you have a lump, your doctor will feel its size, shape, and texture and check to see if the lump moves easily. Benign lumps often feel different from cancerous ones. Lumps that are soft, smooth, round, and movable are likely to be benign. A hard, oddly shaped lump that feels firmly attached within the breast is more likely to be cancer, but further tests are needed to diagnose the problem.


A mammogram is an x-ray picture of tissues inside the breast. Mammograms can often show a breast lump before it can be felt. They also can show a cluster of tiny specks of calcium. These specks are called microcalcifications. Lumps or specks can be from cancer, precancerous cells, or other conditions. Further tests are needed to find out if abnormal cells are present.

Before they have symptoms, women should get regular screening mammograms to detect breast cancer early:

  • Women in their 40s and older should have mammograms every 1 or 2 years. 
  • Women who are younger than 40 and have risk factors for breast cancer should ask their health care provider whether to have mammograms and how often to have them.

If the mammogram shows an abnormal area of the breast, your doctor may order clearer, more detailed images of that area.

Other Imaging Tests

If an abnormal area is found during a clinical breast exam or with a mammogram, the doctor may order other imaging tests, including:

  • Ultrasound: An ultrasound device sends out sound waves that bounce off breast tissues. A computer uses the echoes to create a picture. The picture may show whether a lump is solid, filled with fluid (a cyst ), or a mixture of both. Cysts usually are not cancer. But a solid lump may be cancer. 
  • MRI: MRI (Magnetic Resonance Imaging) uses a powerful magnet linked to a computer to make detailed pictures of breast tissue. These pictures can show the difference between normal and diseased tissue.


A biopsy is the removal of tissue to look for cancer cells. You may need to have a biopsy if an abnormal area is found. Your doctor or a surgeon will remove fluid or tissue from your breast in one of several ways:

  • Fine-needle aspiration biopsy: Your doctor uses a thin needle to remove cells or fluid from a breast lump. 
  • Core biopsy: Your doctor uses a wide needle to remove a sample of breast tissue. 
  • Skin biopsy: If there are skin changes on your breast, your doctor may take a small sample of skin. 
  • Surgical biopsy: Your surgeon removes a sample of tissue.

Sources: National Cancer Institute and UC Davis Comprehensive Cancer Center 


The close collaboration between our doctors and our research scientists means that new drugs and treatments developed in the laboratory can quickly move to the clinic, offering our patients immediate access to the latest therapies.

To learn about surgical interventions for breast cancer, visit Surgical Oncology - Breast cancer yellow arrow

Clinical Trials
UC Davis Comprehensive Cancer Center has a large clinical trials network, allowing our patients access to the newest drugs and therapies before they become widely available. During all stages of your treatment you should talk to your medical specialist about what clinical trials may be available for you.

Sources: National Cancer Institute and UC Davis Comprehensive Cancer Center 

Your Team


Mili Arora, M.D.
Assistant Professor

Helen Chew, M.D.
Director, Clinical Breast Cancer Program
Professor of Medicine

Scott Christensen, M.D.
Professor of Internal Medicine, Hematology and Oncology
Associate Director, Hospice Program
Medical Director, Cancer Care Network

Kendra Hutchinson, M.D.
Associate Professor

Tianhong Li, M.D., Ph.D.
Associate Professor of Medicine

Eve Rodler, M.D.
Assistant Professor of Medicine


Richard Bold, M.D.
Chief of Surgical Oncology
Professor of Surgery

Candice Sauder, M.D., M.Ed.
Assistant Professor of Surgery

Diagnostic Radiology

Shadi Aminololama-Shakeri, M.D.
Assistant Professor

Cyrus Bateni, M.D.
Assistant Professor

Terry L. Coates, M.D.
Professor of Radiology

Jonathan Hargreaves, M.D.
Assistant Professor

Karen K. Lindfors, M.D.
Chief of Breast Imaging
Professor of Clinical Radiology


Alexander Borowsky, M.D.
Associate Professor of Medical Pathology

Lydia P. Howell, M.D.
Chair and Professor of Pathology,
Department of Pathology and Laboratory Medicine

Plastic and Reconstructive Surgery

Granger Wong, M.D., D.M.D.
Associate Professor of Surgery

Michael S. Wong, M.D.
Assistant Professor of Surgery

Lee L.Q. Pu, M.D.
Professor of Surgery

David Sahar, M.D.
Assistant Professor

Radiation Oncology

Jyoti Mayadev, M.D. 
Assistant Professor


The UC Davis Breast Cancer Program is dedicated to caring for the whole patient. We offer: