FHx and Breast Cancer Flashcards
What % breast and ovarian cancer is hereditary
5-10%
Breast CA risk factors
Early menses first birth > 30 Nulliparity menopause > 55 alcohol radiation previous Fhx of breast cancer
Ovarian CA risk factors
Nulliparity
FHX of ovarian cancer
Are BRCA mutations recessive or autosomal dominant
autosomal dominant
What is Li Fraumeni syndrome
TP53 gene
linked to breast ca around 33 yrs
What is Peutz-Jegher’s syndrome
STK11 gene
increase risk breast cancer by 32% by 60
What is Cowden syndrome
PTEN gene
25-50% breast cancer risk
What is Ataxia Telangiectasia syndrome
ATM gene
increase breast cancer risk
What is key to genetic counseling
Family History
What are suspicious for hereditary cancer symptoms
Cancer > 2 close relatives
Early age diagnosis
Multiple primary tumors
Bilateral or multiple rare cancers
What are red flags for hereditary breast and ovarian cancers
breast