Patients are sometimes left paying out-of-pocket for exams that are not yet the standard of care .

Most oncologists are unaware of how to implement the new technologies into standard treatment protocols. 

Some breastcancer experts are concerned that widespread testing can identify genetic mutations. 

However, the impact is unclear and might create anxiety, leading to further testing and also rise in the cost. 

Mutations on other genes that are associated with breast cancer are much less common.