Fibrocystic Breast Disease

**Definition:** A common and benign breast disease characterized by varying degree of fibrocystic changes in the breast tissue. There are three major patterns of morphological changes, including FIBROSIS, formation of CYSTS, and proliferation of glandular tissue (adenosis). The fibrocystic breast has a dense irregular, lumpy, bumpy consistency.

**Tree numbers:** - C17.800.090.750

**Synonyms:** - Breast Dysplasia - Fibrocystic Changes of Breast - Fibrocystic Disease of Breast - Fibrocystic Mastopathy - Mammary Dysplasia