focal fibrosis of the breast

Focal fibrosis of the breast (FFB) is a benign entity characterized by abundant connective tissue separating intervening ducts and lobules, which are often atrophic. There is obliteration of the mammary acini and ducts by hypocellular fibrous tissue which results in a localized area of fibrous tissue associated with hypoplastic mammary ducts and lobules.

Clinical presentation

It can present as a palpable breast mass.

Radiographic features

It can have a wide spectrum of imaging findings although most commonly appears as an enlarging solid mass or developing density on mammography or as an oval mass on sonography . As it mimics most sinister breast pathology, a biopsy is required to exclude malignancy.