Fig. 1
From: Isolated radial scar diagnosis by core-needle biopsy: Is surgical excision necessary?
a Left breast screening mammogram and compressing view. Left breast mammogram shows non-palpable speculated lesion with radiating bands. They appear as an asymmetric density or area of architectural distortion without a central mass. Radiating spicules in a background of radiolucent fatty tissue create a “black star” appearance. b Ultrasound showing radial scar. Ultrasound shows ill-defined hypoechoic area with or without posterior shadowing and associated distortion (which is best demonstrated on coronal view). c Radial scar coronal plane. From left to right: Left picture shows ultrasound 1 mm thick slice of conventional imaging. Middle picture shows 2 mm thick slice showing hyperechoic fibroelastosis. Left picture shows gross appearance dominated by fibroelastosis. d Haematoxylin-eosin stain of radial scar core needle biopsy. Core needle biopsy pathology (original magnification ×100; haematoxylin-eosin stain) shows speculated radial scar with a central nidus of dense fibroelastotic tissue and radiating fibrous bands surrounded by “corona” of glandular proliferations and cysts