Hallmarks of Inherited Cancer syndromes Flashcards
Cancer Risk Factors
Age, lifestyle, other conditions, occupational hazards, ethnicity, geographic, family history
Most cancer predisposition genes have _ penetrance
reduced (<100)
Autosomal Dominant Cancer Syndromes
Hereditary breast and ovarian cancer syndrome (BRCA1/2)
FAP (APC)
NF1 (NF1)
Von Hippel Lindau (VHL)
Autosomal Recessive Cancer Syndromes
Bloom syndrome (BLM)
MYH- associated polyposis (MYH)
X-linked Cancer Syndromes
Fanconi Anemia (FANCB)
Features of Inherited Cancer syndromes
several relative with same or related cancer
younger age of onset than typical
AD pattern
rare cancers
multifocal or bilateral cancers
multiple primary cancers
other nonmalignant features
absence of external factors
Rare cancers
male breast cancer
ovarian cancer
pheochromocytomas
paraglangliomas
pancreatic cancer
Approximately _% of patients with pathogenic variant in a cancer predisposition did not meet criteria for testing
40%
Reasons someone may not meet criteria
no significant/ limited family history
no personal history/ characteristics of disease