HIGH RISK BREAST DISORDERS:

Radial Scar

Risk of unrecognized in situ or invasive component: 8% to 17% of excision specimens are positive for malignancy; May be a nidus for development of DCIS or independent risk factor for development of carcinoma in either breast

Diagnosis: CNB; but usually histopathologic diagnosis/biopsy incidentaloma: Fibroelastic core with radiating ducts and lobules with varying degrees of abnormal epithelial growth; Radial scar = lesion < 1cm; Complex sclerosing lesion = lesion > 1cm

Imaging: Mammogram: Focal architectural distortion with "black star" appearance US: If findings are present, they are indistinguishable from breast cancer

Management: Surgical excision

(Ikeda 2010, Georgian-Smith 2014, Sabel 2015, Mario 2015)