Using NGS (covering all of the BRCA1/2 exons as well as the exon-intron junctions) of FFPE specimens obtained from 99 Taiwanese patients with ovarian cancer, we analyzed 1) germline and somatic BRCA1/2 mutations and 2) the occurrence of biallelic BRCA1/2 inactivation. The gene discussed is BRCA1; the disease is ovarian carcinoma.