fibrocystic

/ˌfaɪbroʊˈsɪstɪk/
adjective
  1. Relating to or characterized by the growth of fibrous tissue and cysts, especially in the breasts.
    • The ultrasound showed fibrocystic tissue in the breast, which is common and usually benign.
    • Many women have fibrocystic breast changes that are not dangerous.
    • Fibrocystic breast condition can cause lumps and discomfort before a period.