NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,804 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

mammogram
(MA-muh-gram)
An x-ray of the breast.

EnlargeMammography; the left breast is pressed between two plates.  An X-ray machine is used to take pictures of the breast. An inset shows the x-ray film image with an arrow pointed at abnormal tissue.

Mammography. The breast is pressed between two plates. X-rays are used to take pictures of breast tissue.