Quiz 3 Flashcards
(168 cards)
Most common cancer in women, 1 in 8 women will get this
29-30% of new cancers in women
2017: 255,180 new cases (over 252,000 females, 24-2,500 males)
African American women more likely to present with regional/distant disease than white women
Family member with bilateral disease or diagnosed premenopause increases risk
Left most common
Treated with tangents, IMRT, or hybrid of both; usually chemo first
Stop using birth control
Rare to other breast (mets 0.5-1%) but 1-2 times more likely to develop new tumor in contralateral breast
Ovaries, spleen, and stomach
TNM staging
Breast cancer
10 risk factors of breast cancer
Gender: female increases risk
Early menarche
Increased age of birth of first child
Late menopause over 50-55 years old
Use of exogenous hormones: birth control increases risk with prolonged use over 5 years
History of atypical hyperplasia
Family history
Radiation exposure: avoid wedge because of scatter
Increasing age and history of breast cancer
Obesity/high fatty diets: fat cells produce estrogen
Menarche
Menstration
Benign breast disease proliferates and turn malignant
Atypical hyperplasia
___-___% of breast cancer occurs from altered genes
BRCA 1 & 2 mutations account for ___-___% of breast cancer
1 first degree relative with disease increases risk, 2 _______ risk
5-10%
5-6%
Triples
Protein promotes growth of breast cancer, 1 in 5 cancers have this more aggressive mutation
Human epidermal growth factor receptor 2 (HER2)
6 signs and symptoms of breast cancer
Most common sign of early benign disease: non-painful, mobile mass; malignant: firm, nontender, irregular, non-movable and fixed mass
Skin dimpling
Nipple retraction
Erythema coincides with peau d’orange
Nipple discharge
Enlarged axillary/supraclavicular (scv) LN
Dimpling on the skin commonly mistaken as infection, 50% have lump or mass
Clinical/pathological diagnosis, can be lymphatic
Peau d’orange/inflammatory
Upper outer breast cancer = \_\_\_% Upper inner = \_\_\_% Central = \_\_\_% Lower outer = \_\_\_% Lower inner = \_\_\_%
Upper outer breast cancer = 50% Upper inner = 15% Central = 17% Lower outer = 11% Lower inner = 6%
7 diagnostic methods for breast cancer
Mammogram Biopsy: fine needle; guided biopsy (mammotome/stereotactic biopsy) for deep tumor Breast self examinations (BSE) Clinical self exam (CBE) Digital radiography MRI defines extent of disease PET for staging
When is it recommended for patients 40-44 years old, 45-54 years old, and 55 or older to get a mammogram?
40-44: patient’s choice
45-54: yearly
55: every 2 years
Excision of tumor with small margin of normal tissue around it; with LN dissection and RT, gets as good a result as mastectomy
Excisional, remove mass in breast
Lumpectomy
Median age of diagnosis of breast cancer
61
8 histologic types of breast cancers
Invasive/infiltrating ductal Infiltrating lobular Medullary: 5-7% Tubular Mucinous Comedo Paget's disease Inflammatory/peau d'orange
70-80% of breast cancers; in ducts
Squamous, angiosarcoma, etc.
Invasive/infiltrating ductal
10-15% of breast cancers, second most common in glands that secrete milk
Infiltrating lobular
Uncommon disease of nipple
Paget’s disease
Average doubling time of breast cancer
60-90 days, but can be as fast as 15 days or up to 600 days
LN involvement in ___-___% of breast cancers
40-60%
Lateral lesions usually go to _______ or _______ LNs
Medial lesions usually go to _______, _______, or _______ LNs
Lateral lesions usually go to axillary or supraclavicular LNs
Medial lesions usually go to internal mammary, mediastinal, or supraclavicular LNs
Biopsy first LNs that receive drainage from tumor; if disease present, complete biopsy
Sentinel node biopsy
5 year survival of stage 1, 2, 3, and 4 breast cancer
1: 99%
2: 84%
3: 65%
4: less than 26%
60% estrogen receptor (ER) status; slower-growing, better prognosis
Usually postmenopausal
Use tamoxifen
ER positive
Anti-estrogen therapy, 60% response rate for ER positive
Standard adjuvant therapy for ER positive patients
Tamoxifen