This study used a gene panel sequencing approach to screen a consecutive series of unselected New Zealand female breast cancer patients for pathogenic variants in any of six high-risk breast cancer susceptibility genes (BRCA1, BRCA2, CDH1, PALB2, PTEN and TP53) and subsequently assessed the identified carriers for their eligibility for testing using national guidelines. The gene discussed is TP53; the disease is breast carcinoma.