Histologic subtypes with representative % all invasive breast carcinomas:
– Invasive ductal carcinoma (IDC) not otherwise specified (NOS) > 70%
– Invasive lobular carcinoma (ILC) 10%
– Ductal/lobular (mixed) carcinoma 7%
– Mucinous, tubular, medullary, papillary, colloid carcinomas ~5% combined
(Ikeda 2010, Georgian-Smith 2014, Bleiweiss 2013, Esserman 2014)
MALIGNANT BREAST DISORDERS:
Invasive Breast Cancer