Breast Flashcards
what is the standard practice to exclude or diagnose breast cancer
- Clinical assessment (history and examination)
- Imaging (ultrasound or mammography)
- Histology (fine needle aspiration or core biopsy)
Clinical features that may suggest breast cancer
-> Lumps that are hard, irregular, painless or fixed in place
-> Lumps may be tethered to the skin or the chest wall
-> Nipple retraction
-> Skin dimpling or oedema (peau d’orange)
NICE recommendations for a two week wait referral for suspected breast cancer
- Unexplained breast lump in patients aged 30 or above
- Unilateral nipple changes in patients aged 50 or above (discharge, retraction or other changes)
Presentation of a fibroadenoma
- Painless
- Smooth
- Round
- Well circumscribed (well-defined borders)
- Firm
- Mobile (moves freely under the skin and above the chest wall)
- Usually up to 3cm diameter
- NO increased risk of malignancy
What is a fibroadenoma and who does it usually affect
- Benign breast tumours of stromal / epithelial breast duct tissue
- Younger women (20-40) as respond to female hormones
what is the most common cause of breast lumps and who do they usually affect
- Breast cyst
- 30-50 yrs
- Small increased risk of malignancy
Presentation of breast cyst
Smooth
Well-circumscribed
Mobile
Possibly fluctuant
Management of breast cyst
Aspiration
Presentation of fat necrosis
- History of localised trauma causing degeneration and scarring of fat = benign lump
- Painless
- Firm
- Irregular
- Fixed in local structures
- There may be skin dimpling or nipple inversion
Management of fat necrosis
- USS or mammogram and core biopsy to exclude breast cancer
Management of cyclical breast pain
- Wearing a supportive bra
- NSAIDs
- Avoiding caffeine
- Applying heat to the area
- Hormonal treatments (e.g., danazol and tamoxifen) under specialist guidance
Definition of gynaecomastia
- Abnormal amount of breast tissue in males
Possible causes of gynaecomastia
- Hormonal imbalance between oestrogen and androgens
- Hypoprolactinaemia
- Idiopathic
What conditions can cause increased oestrogen and in turn gynaecomastial
- Obesity (aromatase is an enzyme found in adipose tissue that converts androgens to oestrogen)
- Testicular cancer (oestrogen secretion from a Leydig cell tumour)
- Liver cirrhosis and liver failure
- Hyperthyroidism
- Human chorionic gonadotrophin - (hCG) secreting tumour, notably small cell lung cancer
What conditions can reduce testosterone and in turn cause gynaecomastia
- Testosterone deficiency in older age
- Hypothalamus or pituitary conditions that reduce LH and FSH levels (e.g., tumours, radiotherapy or surgery)
- Klinefelter syndrome (XXY sex chromosomes)
- Orchitis (inflammation of the testicles, e.g., infection with mumps)
- Testicular damage (e.g., secondary to trauma or torsion)
What medications can cause gynaecomastia
- Anabolic steroids (raise oestrogen levels)
- Antipsychotics (increase prolactin levels)
- Digoxin (stimulates oestrogen receptors)
- Spironolactone (inhibits testosterone production and blocks testosterone receptors)
- Gonadotrophin-releasing hormone (GnRH) agonists (e.g., goserelin used to treat prostate cancer)
- Opiates (e.g., illicit heroin use)
- Marijuana
- Alcohol
Give 2 treatment options for gynaecomastia
Tamoxifen
Surgery
what disorders can cause hyperprolactinaemia and in turn galactorrhea
-> Idiopathic (no cause can be found)
-> Prolactinomas (hormone-secreting pituitary tumours)
-> Endocrine disorders, particularly hypothyroidism and polycystic ovarian syndrome
-> Medications, particularly dopamine antagonists (i.e., antipsychotic medications)
What AD condition can prolactinomas be associated with
- Multiple endocrine neoplasia (MEN) type 1
what 2 mass effects do macroprolactinomas cause
- Headaches
- Bitemporal haemianopia due to sitting on the optic chiasm
what are the management options of galactorhoea?
- Symptoms : dopamine agonists (bromocriptine/cabergoline)
- Pituitary tumour : trans-sphenoidal surgery
What is mammary duct ectasia ?
Dilation of the large ducts in the breasts
Presentation of mammary duct ectasia
Nipple discharge (cheese like)
Tenderness or pain
Nipple retraction (slit like) or inversion
A breast lump (pressure on the lump may produce nipple discharge)
Who does mammary duct ectasia occur most commonly in?
- Perimenopausal women
- SMOKERS (big RF)
Assessing mammary duct ectasia
Rule out breast cancer with triple assessment
What is often seen on mammogram in mammary duct ectasia but is not specific to it
Microcalcifications