What’s changed in 20 years of testing for familial cancer?

Twenty years ago, when a number of cancer predisposition genes were identified, the cause of most cancers was considered ‘hereditary' or ‘sporadic'.

Twenty years ago, when BRCA1, BRCA2 and a number of other cancer predisposition genes were identified, the cause of most cancers was considered ‘hereditary' or ‘sporadic'.