Benign sclerosing lesions of the breast – an update

Benign sclerosing lesions of the breast comprise primarily sclerosing adenosis and radial scar/complex sclerosing lesions (RS/CSL). Other benign lesions which may become fibrosed and malignant tumours frequently associated with a sclerotic stromal reaction, may enter their differential diagnosis either radiologically or on pathological examination. This updated review focuses on the core biopsy diagnosis and operative pathology of these lesions with particular reference to their prognosis and recent trends in their management.