Breast cancer Flashcards
What does management depend on?
staging, tumour type and patient background
What management options are there?
surgery
radiotherapy
hormone therapy
biological therapy
chemotherapy
What is the management for the vast majority of patients and what is the contraindication?
surgery
frailty with metastatic disease who may be better manageed with hormonal therapy
What is relevant prior to surgery and what determines management?
the presence/absence of axillary lymphadenopathy
Prior to surgery what should women with no palpable axillary lymphadenopathy at presentation have?
a pre-operative axillary ultrasound before their primary surgery
Prior to surgery what should women with no palpable axillary lymphadenopathy at presentation have if axillary US picks up on lymph nodes?
sentinel node biopsy to assess node burden
what should be done prior to surgery inpatients who present with clinically palpable lymphadenopathy and what may this lead to?
axillary node clearance is indicated at primary surgery
lead to arm lymphedema and functional arm impairment
What meets the criteria for mastectomy?
multifocal tumour
central tour
large lesion in small breast
DCIS > 4cm
What meets the criteria for wide local excision?
solitary lesion
peripheral lesion
small lesion in large breast
DCIS < 4cm
When is whole breast radiotherapy offered and by how much may it reduce the risk of recurrence?
Whole breast radiotherapy is recommended after a woman has had a wide-local excision as
this may reduce the risk of recurrence by around two-thirds
For women who have had a mastectomy when is radiotherapy offered?
for T3-T4 tumours and for those with four
or more positive axillary nodes
When is hormonal therapy offered?
if tumours are positive for hormone receptors
What hormonal therapy is used in pre-menopausal women?
tamoxifen
what hormonal therapy is used in post-menopausal women?
aromatase inhibitors
risks of tamoxifen
increased risk of endometrial cancer
venous thromboembolism
menopausal symptoms.
What is the most common type of biological therapy and when is it used?
trastuzumab (Herceptin)
HER2 positive patients
when is Herceptin contraindicated?
heart disorders
When is chemotherapy used?
prior to surgery (‘neoadjuvanant’ chemotherapy) to downstage a primary lesion or after surgery depending on the stage of the tumour
When should people be referred on the 2ww cancer referral pathway?
aged 30 and over and have an unexplained breast lump with or without pain
or
aged 50 and over with any of the following symptoms in one nipple only: discharge, retraction or other changes of concern
When should referral to 2ww cancer pathway be considered?
with skin changes that suggest breast cancer
or
aged 30 and over with an unexplained lump in the axilla
When should non-urgent referrals be suspected?
under 30 with an unexplained breast lump with or without pain.
Risk factors for breast cancer
BRCA1, BRCA2 genes - 40% lifetime risk of breast/ovarian cancer
1st degree relative premenopausal relative with breast cancer (e.g. mother)
nulliparity, 1st pregnancy > 30 yrs (twice risk of women having 1st child < 25 yrs)
early menarche, late menopause
combined hormone replacement therapy
(relative risk increase * 1.023/year of use),
combined oral contraceptive use
past breast cancer
not breastfeeding
ionising radiation
p53 gene mutations
obesity
previous surgery for benign disease (?more follow-up, scar hides lump)
What are ductal or lobular carcinoma?
Most breast cancers arise from duct tissue followed by lobular tissue
What is the most common type of breast cancer?
invasive ductal carcinoma or ‘No Special Type (NST)