breast Flashcards
3 receptor types in breast cancer
oestrogen receptors (ER)
progesterone receptors (PR)
human epidermal growth factor (HER2)
most common form of breast tumour?
ductal carcinoma
features inflammatory breast cancer
presents similarly to breast abscess or mastitis
peau d’orange + swollen, warm, tender
does not respond to abx
bad prognosis
features paget’s disease of nipple
represents spread to nipple
like eczema - erythematous, scaly rash (starts at nipple and spreads to areolar (opposite in eczema))
could represent DCIS or invasive breast cancer
how often is screening for breast cancer + what ages
every 3 years for 50-70 years old
breast cancer family history features which indicate a referral
first degree relative with breast cancer <40
male first degree relative with breast cancer
first degree relative with bilateral breast cancer <50
two first degree, or one first + one second with breast cancer
one first/second degree with breast + one first/second with ovarian
appropriate breast cancer imaging in <30
ultrasound - distinguish solid lumps from cystic lumps
appropriate breast cancer imaging in older women
mammogram
common metastases in breast
liver
lung
brain
bones
indications urgent referral breast cancer
> 30 + breast mass
50 + nipple discharge, retraction
features phyllodes tumour
grow in leaf like pattern
majority benign
hormonal management ER positive tumours
pre-menopausal = tamoxifen (oestrogen receptor antagonist)
postmenopausal = anastrozole (aromatase inhibitor)
hormonal management HER2 positive tumours
trastuzumab
which breast cancer patients are offered radiotherapy
wide local excision - offered adjuvant radio
also mastectomy patients T3 and up
pathophysiology tamoxifen
ER inhibitor or stimulator depending on site
inhibits in breast, stimulates in uterus
increase risk endometrial cancer