NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,800 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.

inflammatory breast cancer
(in-FLA-muh-TOR-ee brest KAN-ser)
A type of breast cancer in which the breast looks red and swollen and feels warm. The skin of the breast may also show the pitted appearance called peau d'orange (like the skin of an orange). The redness and warmth occur because the cancer cells block the lymph vessels in the skin.

EnlargeInflammatory breast cancer of the left breast with redness, peau d'orange, and inverted nipple.

Inflammatory breast cancer of the left breast showing peau d’orange and inverted nipple.