Diagnostic Mammograms

There are three stages, or phases, of mammography: SCREENING, DIAGNOSTICS and BIOPSY.

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What Is A Diagnostic Mammogram?

After a screening mammogram, some results or images may have areas of concern which can't be resolved with only the information presented from the screening. These patients would be called back for a diagnostic mammogram. This phrase basically means it’s a secondary, problem-solving mammogram.

diagnostic mammogram two views

It should be stressed that most abnormalities found during a mammogram are NOT breast cancer.

However, many women who have regular screening mammograms need additional tests to investigate any abnormalities that may be found to view these areas in more detail or through a more targeted test for that area.

Diagnostic mammograms take a little longer than screening mammograms because they involve more x-rays in order to obtain views of the breast from several different angles. The technician may magnify a suspicious area to produce a detailed picture that can help the doctor make an accurate diagnosis.

MRI MR of breast from Two Views

At this point, other forms of radiograph tests may be used rather than a simple X-ray to get a better picture of the area in question. Ultrasound, ductography, positron emission mammography (PEM), and magnetic resonance imaging (MRI) are often performed in addition or with mammography.

Ultrasound is typically used for further evaluation of masses found on mammography or palpable masses not seen on mammograms. This technique has become a valuable aid, when used together with mammography, to diagnose breast cancer in the last few years because it is widely available and is less expensive than other cancer diagnosis options. The ultrasound technique is usually used after a mammogram has located a specific area of concern. Ultrasound’s main advantage is distinguishing between cysts and solid masses and between benign and malignant tumors.

diagnostic ductogram mammogram two views

Ductograms are still used in some institutions for evaluation of bloody nipple discharge when the mammogram is non-diagnostic. This technique involves inserting a plastic tube in the opening of the duct at the nipple and injecting a certain amount of contrast substance. The contrast substance will help outline the shape of the duct and will locate any mass inside the duct on an x-ray image. This technique is used to determine the cause of bloody nipple discharge.

A Breast MRI can be useful for further evaluation of questionable findings as well as for screening pre-surgical evaluation in patients with known breast cancer to detect any additional lesions that might change the surgical approach, for instance from breast-conserving lumpectomy to mastectomy.

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views of breast in mammogram

ABOVE: Three angles of mammograms - Cranialcaudal, Mediolateral Oblique and Mediolateral view - all from the same chest.

MRI mammogram from Two Views

ABOVE: Single MRI (or MR) image taken of breast - the MRI version of a mammogram.

four views ductogram mammogram Two Views

ABOVE: Most mammograms, without a contrast, can't show the ducts of the breasts as clearly as a ductogram.


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IMPORTANT: The information on this page, and throughout the entire site, is not intended to provide advice or treatment for a specific situation. Consult your physician and medical team for information and treatment plans on your specific condition(s). Images are shown for illustrative purposes. Do not attempt to draw conclusions or make diagnoses by comparing these image to other medical images, particularly your own.

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