Aggressive fibromatosis comprises connective tissue tumours that represent 0.03% of all bodily neoplasms, occurring more often in the abdominal wall, mesentery, and extremities; its location in the breast constitutes a very infrequent type of lesion.Its pathogenesis is diverse and its relationship with augmentation mastoplasty is still unclear.Four cases of aggressive breast fibromatosis following augmentation mastoplasty are reported in this article.
