Exams We Offer: Mammogram

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A mammogram is an X-ray of the breast used to screen for and diagnose breast cancer. A mammography unit can either produce a standard 2-D image or 3-D image. 3-D mammography, or tomosynthesis, produces more detailed images of the breast tissue. Mammograms can also be used for a breast tissue or fluid biopsy.

Screening Mammograms

Annual screening mammograms are recommended for women who are 40 years or older, or for younger women with specific risk factors for breast cancer. You don’t have to have any signs or symptoms of a breast abnormality in order to receive a screening; they are used for the early detection of breast cancer and other breast health issues. Eighty percent of tumors found during a mammogram are benign. Screenings are also recommended for a period of time as follow-up care after breast cancer treatment.

Diagnostic Mammograms

You will be referred for this type of mammogram if you have an abnormality on your screening mammogram or if you have a breast mass or other breast change (found during a breast self-exam or by your physician). Diagnostic imaging may include mammograms with extra compression or magnification, mammograms shot from different angles or breast ultrasound.

Learn more about a mammogram exam in the Johns Hopkins Health Library.


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How do I prepare for a mammogram?

What to Expect During Your First Mammogram

A mammogram is an important step in taking care of yourself and your breasts but not knowing what to anticipate can be stressful. Join Monica for her first mammogram experience with Johns Hopkins Medical Imaging to learn more about how to prepare for a mammogram and what to expect during and after the exam.

Learn more about mammograms

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