Breast Fibroadenoma, also known as fibroadenoma, is related to benign breast phyllodes tumor and adenoma. An important gene associated with Breast Fibroadenoma is PGR (Progesterone Receptor), and among its related pathways/superpathways are Cellular responses to stimuli and Signaling by Receptor Tyrosine Kinases. The drugs Tamoxifen and Selective Estrogen Receptor Modulators have been mentioned in the context of this disorder. Affiliated tissues include breast and lymph node, and related phenotypes are homeostasis/metabolism and nervous system