NCCN Cancer Centers

The National Comprehensive Cancer Network (NCCN) is a not-for-profit alliance of 23 of the world’s leading cancer centers. We are dedicated to improving the quality and effectiveness of care provided to people with cancer.

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Term Definition
Benign breast disease

A common condition marked by benign (noncancerous) changes in breast tissue. These changes may include irregular lumps or cysts, breast discomfort, sensitive nipples, and itching. These symptoms may change throughout the menstrual cycle and usually stop after menopause. Also called fibrocystic breast disease, fibrocystic breast changes, and mammary dysplasia.

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