A study from Oman looking at 50 BC patients and 30 healthy individuals and/or carriers of benign tumors undergoing biopsy and BC surgery between January 2012 and April 2014 found that the majority of patients (84.0%) did not have a family history of BC and did not exhibit any BRCA1/2 mutations, indicating that such mutations are unlikely to play a key role in sporadic BCs [48]. Here, BRCA1 is linked to breast cancer.