Breast CA Flashcards
Effect of chronic low-dose aspirin to incidence of breast cancer
Decreased
If with equivocal or nonsuspicious lesion on PE of premenopausal women
Reexamine in 2-4wks during follicular phase of menstrual cycle (days 5-7)
If with mammographic lesion but not palpable, low index of suspicion
Repeat mammogram after 3-6 months
If with mammographic lesion, looks malignant
Excision biopsy
Majority of benign breast masses
Fibrocyctic disease
Breast cancer staging
T1: 0.5-2cm
T2: 2-5cm
T3: > 5cm
T4: extension to chest wall, inflammation, satellite lesions, ulcerations
N1: 1-3 axillary LN and/or microscopic internal mammary LN
N2: 4-9 axillary LN or clinically apparent internal mammary LN without axillary
N3: >/= 10 axillary LN or infraclavicular LN or clinically apparent ipsilateral internal mammary LN + >/= 1 axillary LN
Stage I: T1N0M0 Stage IIa: T2N0M0 Stage IIb: T3N0M0 Stage IIIb: T4 Stage IIIc: N3
Subtype of breast cancer likely to respond to endocrine therapy
Luminal A
Triple negative subtype of breast cancer
Basal
Subtype of breast cancer where BRCA mutations fall into
Basal
Most important prognostic variable
Tumor stage
First choice chemo for metastatic breast cancer
Aromatase inhibitors
Treatment if with overexpression of erbB2 or her-2/neu
Trastuzumab + paclitaxel
Treatment if triple negative subtype
Platinum-based
Treatment for early stage premenopausal women
Adjuvant multidrug chemo followed by endocrine therapy
Considered as a premalignant breast lesion
Lobular neoplasia