Breast Cancer Flashcards
What are risk factors?
Being female
Increased oestrogen exposure
HRT - combined especially
Obesity
Smoking
Family history
More dense breast tissue
COCP
What are BRCA genes
Tumour suppressor genes
What chromosome is the BRCA 1 gene found
17
What other cancers do mutations of the BRCA 1 gene increase risk of ?
Ovarian
Bowel
Prostate
What chromosome is BRCA2 gene found on?
13
What other cancers does BRCA 2 predispose you to?
Ovarian cancer
What are the two types of carcinoma in situ
Ductal and lobular
How is ductal carcinoma in situ usually picked up?
mammogram screening
What is DCIS
Pre-cancerous or cancerous epithelial cells of the breast duct
Localised to a single area
What is LCIS
Pre-cancerous condition
How is LCIS usually picked up
Incidentally on breast biopsy
How is LCIS managed
Close monitorign
How is DCIS managed
Excision and adjuvant treatment q
What is invasive ductal carcinoma NST
NST no specific type
Originate in cells from breast ducts
Can invasive ductal carcinoma NST be seen on mammograms?
Yes
Where do invasive lobular carcinomas originate
Lobules
How does inflammatory breast cancer present
Swollen
Warm
Tender
Pitting skin
What is Paget’s disease of the nipple
Breast cancer involving the nipplE
mAY REPRESENT DCIS OR INVASIVE BREAST CANCER
How does Paget’s disease of the nipple present
Eczema of the nipple
Erythematous scaly rash
Explain the breast cancer screening program
Mammogram every 3 years aged 50 to 70
How often is mammogram offered for those at high risk
Annually, age depends
What chemoprevention may be offered at women at high risk?
Tamoxifen - premenopausal
Anastrozole if post-menopausal
What are clinical features that may suggest breast cancer
Lump - hard, irregular, painless or fixed in place
Lump tethered to the skin or chest wall
Nipple retraction
Skin dimpling - peau d’orange
Oedema
Lymphadenopathy
Who should have a 2 week wait referral?
Unexplained breast lump in patients aged 30 or above
Unilateral nipple changes 50 or above
What is involved in a triple assessment?
Clinical assessment
Imaging
Biopsy
Which scan is more effective in older women?
mammogram
If women are diagnosed with breast cancer, what further investigation are they offered?
USS of the axilla and USS guided biopsy of any abnormal nodesW
What is a sentinel lymph node biopsy>?
Sentinel node biopsy is performed during breast surgery for cancer. An isotope contrast and a blue dye are injected into the tumour area. The contrast and dye travel through the lymphatics to the first lymph node (the sentinel node). The first node in the drainage of the tumour area shows up blue and on the isotope scanner. A biopsy can be performed on this node, and if cancer cells are found, the lymph nodes can be removed.
What are the 3 breast cancer receptors
Oestrogen receptors
Progesterone receptors
HER2
what is triple negative breast cancer
Breast cancer cells that do not express any of the three receptors
What are the 4 common locations for breast cancer metastasis
Lungs
Liver
Bones
Brain
What staging system is used for breast cancer
TNM
What are the treatments for oestrogen receptor positive breast cancer? How long are they given for?
Tamoxifen if premenopausal
Aromatase inhibitors for postmenopausal women
5-10 years
What is a risk of tamoxifen
Increases risk of endometrial cancer
How does tamoxifen work
Blocks oestrogen receptors in breast tissue
How do aromatase inhibitors work
Block the creation of oestrogen in fat tissue
What targeted treatments can be used for HER2 cancer?
Trastuzumab
Pertuzumab
Neratinib
What are the main options for breast reconstruction
Breast implants
Flap reconstruction
wHAT ARE the different types of flap reconstruction?
- Lattissimus dorsi flap
- Transverse rectus abdominis flap
- Deep inferior epigastric perforator flap
What is the adjuvant hormonal therapy for oestrogen receptor positive cancer in pre menopausal women?
Tamoxifen
What is the adjuvant hormonal therapy for oestrogen receptor positive cancer in post menopausal women?
Anastrozole
What are side effects of tamoxifen?
Menstrual disturbance
VTE
Increased risk of endometrial ca
What is the main side effect of aromatase inhibitors ?
Osteoporosis
What investigation should women who are starting anastrozole have before ?
DEXA scan
What adjuvant hormonal therapy is given for those with HER2 receptor positive breast cancer ?
Trastuzumab