These MRI effectiveness results in detecting DCIS in BRCA PSV carriers are in line with a previous study by Warner [26], who reported that 10/445 BRCA PSV carriers were diagnosed with DCIS by MRI (4/10—BRCA1 PSV carriers and 6/10—BRCA2 PSV carriers). This evidence concerns the gene BRCA1 and ductal breast carcinoma in situ.