Patients were young with a median age at breast cancer diagnosis of 41 years; 2,200 (57.7%) had BRCA1 variants while 1,212 (31.8%) had BRCA2. BCS was performed on 2,157 (56.7%) while 1,408 (41.5%) patients had mastectomy. Here, BRCA2 is linked to breast carcinoma.