If BRCA1 is the is the mc gene associated with female breast cance, then how luminal is the most common subtype( associated with BRCA2)?

If BRCA1 is the is the mc gene associated with female breast cance, then how luminal is the most common subtype( associated with BRCA2)?

It’s not like absolute figures that luminal A is associated with BRCA2 only.

It is usually associated with BRCA2 but many other genes can be there .

Also majority are due to sporadic mutations.

Overall most common gene mutated in hereditary breast cancer is BRCA1 & in sporadic, it’s p53.

Only 10% cancers are familial or because of BRCA gene mutations

90% are sporadic