Assertion: prophylactic mastectomy | /r/HasProperty | opted in patient
Facets:
value: to remove the breasts
type: PURPOSE
Source sentences:
text: In some patients who have a high risk of malignancy due to a strong family history of breast cancer or the presence of mutations in the BRCA1 and BRCA2 genes, a prophylactic mastectomy may be opted for, to remove the breasts before cancer develops.