VP L1 Breast cancer Flashcards
5 main methods of treating cancer
Surgery Radiotherapy Hormonal therapies Chemotherapy Monoclonal antibodies
Risk factors for developing breast cancer (10)
Age
Age of menarche & menopause
Age at first full term pregnancy
Lactiation
Oral contraceptives
Weight
Diet
Alcohol
Geographical location
Radiation
Presenting BC (breast cancer) symptoms: (4)
lump
pain
nipple discharge
symptoms from metastisis
Examination of suspected breast cancer might show (2)
skin dimpling
swollen lymphnodes
3 investigations to confirm BC?
Mammography
Ultrasound
Fine needle aspiration/biopsy
What are the limitations of mammogrphy
doesnt show all breast cancers (only 90%)
What is the purpose of ultrasound of breast?
To see if lump is cancerous or cystic
At what age are benefits shown from BC screening?
50
How often are people screened?
3 years - experts say not enough but cost!
What is non-invasive BC?
Confined to ducts and lobules
What is invasive BC?
Spread to basement membrane and surrounding breast tissue (this is not the same as metastasis)
How is breast cancer staged?
Using TNM system - that looks at size/ ulceration of skin/ fixation to chest wall
How is breast cancer staged?
TNM rating
Tumour status (size)
Lymph node status
Metastases
3 main stages of breast cancer
Early (
3 main stages of breast cancer
Early (
Adverse prognostic factors in BC (6)
- high TNM stage
- poorly differentiated tumours
- lymph/vascular invasion
- ER or PR -ve
- HER2 +ve
- young at diagnosis
Why measure ER (oestrogen receptor) conc?
Predicts response to hormonal therapy
e.g of hormonal therapy (4)
tamoxifen
anaztrazole
letrozole
exemestane
ER and (progesterone receptor) PR +ve cancers give better or worse prognosis?
better
What is the action of oestrogen binding to the ER?
Bound receptor sends signals to stimulate cell division adn growth
e.g. of new agent
Everolimus
2 main surgery types
masectomy
breast conserving surgery (lumpectomy)
What might also be given post surgery?
adjuvant therapy - radio, chemo, hormonal, trastuzamab
Who is given radiotherapy?
All surgery patients at high right of recurrance (tumour >5cm, 4 positive lymph nodes)
How often is radio administered?
5 days a week for 3-5 weeks
Who are hormonal therapies given to?
All women with ER/PR positive tumours