Eugene Oncology Flashcards
(265 cards)
increased lifetime estrogen exposure, BRCA, 1st degree relative, increased density, obesity, alcohol
Breast Cancer : Epi/Risk Factors
Most common cancer in women in US (rising), 2nd leading cause of death (falling), 1 in 8
Breast Cancer : Signs/Symptoms/Findings
sporadic>familial>hereditary(BRCA1)>BRCA2
Breast Cancer Etiology
chro 17q OR 13q mutation of dsDNA repair
BRCA 1 and 2
1:400 (1:40 Ash. Jews), 40%-60% breast, 20-40%ovarian, earlier onset, male risk of breast, prostate and pancreative cancer
BRCA cancer prevalence
> 1% of cells are ER+ or PR+ (treat with tamoxifen)
Breast Cancer : Good Prognosis (most have 85-100% 5 year survival
LN mets, more aggressive/less differentiated, HER2 gene
Breast Cancer, poor prognosis
EGFR, chro 17, amplification of cell proliferation and resistance to apoptosis, tx: trastuzumab + chemo
HER2 mutations
don’t treat with doxy. Increased risk of cardiotoxicity
HER2 mutation Breast Cancer (Trastuzumab)
lumpectomy & radiation or total mastectomy
Local therapy for Breast Cancer
antiestrogen therapy: oophorectomy, leuprolide (blocks hypo-pit axis), tamoxiphen. Post-menopuase: anastrole, letrozole, tamoxifen
Er+ breast tumors
cyclophosphamide/cytotoxan, doxorubicin/adriamycin, paclitaxel/taxol
general chemo for breast cancer
paclitaxel/taxol
indicated for breast cancer in young women with poorly differentiated triple negative tumors (ER-,PR-,HER-)
cancerous cells but no invasion
stage 0 breast cancer
tumor <2cm, no LN
stage 1 breast cancer
tumor 2-5 cm or <4 LN
stage 2 breast cancer
tumor >5 cm or >4 LN
stage 3 breast cancer
metastatic
stage 4 breast cancer
25% of breast Ca
Ductal Carcinoma In Situ (DCIS): Epi/Risk Factors
microcalcification on mamm, fills ductal lumen, nuclear atypia, stage 0
Ductal Carcinoma In Situ (DCIS): Signs/Symptoms/Findings
stage 0 neoplastic transformation of E-cadherin+ large ductal epithelial cells (noninvasive)
Ductal Carcinoma In Situ (DCIS): Pathophysiology/Diagnosis
8-10x risk of invasive carcinoma, most don’t progress, worse if younger onset, larger size, high histo grade, small margin width
Ductal Carcinoma In Situ (DCIS): Prognosis
Ipsilateral risk of invasive cancer
Ductal Carcinoma In Situ (DCIS): Treatment/Notes
Often misdiagnosed as inflammatory (e.g. eczema)
Paget’s Disease: Epi/Risk Factors AND Signs/Symptoms/Findings AND Picture