Assertion: breast cancer's mutation | /r/RelatedTo | heightened risk
Facets:
value: substantially
type: DEGREE
Source sentences:
text: Removal of both breasts before any cancer has been diagnosed or any suspicious lump or other lesion has appeared (a procedure known as "prophylactic bilateral mastectomy" or "risk reducing mastectomy") may be considered in people with BRCA1 and BRCA2 mutations, which are associated with a substantially heightened risk for an eventual diagnosis of breast cancer.