“…In a study by Nizamettin et al, the malignancy rate was 2.28% in BIRADS 4a, 2.86% 4b and 63.64% in 4c lesions. [6] Histopathological analysis of the discordant BIRADS Category IV cases showed , features , ranging from high grade DCIS(1 case), atypical ductal hyperplasia(3cases), FCC with Usual Ductal Hyperplasia (4 cases), Adenomatous h y p e r p l a s i a , E p i t h e l i o s i s a n d B e n i g n e p i t h e l i a l proliferation(4cases) , duct papilloma(2cases), 1 case of tubular adenoma, 1 case of periductal adenoma, 2 cases of mastitis . In the broad category of BIRADS IV, 37 cases concordant cases include malignant lesions like invasive duct cell carcinoma-NST and discordant cases include brocystic disease, broadenoma, tubular adenoma, intraductal papilloma, phyllodes tumour.…”