BRCA2 and ovarian carcinoma: Only one study reported the prevalence of BRCA1 mutations among ovarian cancer patients which was in Algeria [25] with a prevalence of 1% (95% CI: 0–2%).Three studies [17, 22, 27] out of 14 studies report a prevalence of BRCA1 or BRCA2 among both Breast and Ovarian Cancer patients, the pooled prevalence was 9% (95% CI: 0–25%).