Breast Medicine Flashcards
What is fibroadenoma?
Benign tumour of the breast.
What is the histology of fibroadenoma
● glandular epithelium and interlobular stroma of a terminal duct lobular units
● Well-circumscribed, non-encapsulated.
● Does not infiltrate into the parenchyma of the breast
Give 4 differentials for a breast lump
Breast carcinoma.
Fibroadenoma.
Breast abscess.
Breast cyst.
How does fibroadenoma present
Solitary, mobile breast lump with a regular border.
How is fibroadenoma investigated
1st line - breast imaging (USS or mammogram)
Women <30: breast ultrasound.
● Smooth, well-circumscribed mass with uniform hypoechogenic
appearance.
■ Women >30 or highly suspicious for cancer: mammogram.
● Distinct, well-circumscribed mass.
What is Mastitis?
inflammation of the breast tissue, typically due to infection.
Divided into lactational and non-lactational (duct ectasia)
What is a Breast Abscesses?
An encapsulated accumulation of pus within the breast tissue due to infection
What is the cause of Lactational mastitis
Combination of breastfeeding-related nipple trauma and milk stasis predisposes the breast to local infection.
What is the cause of Duct ectasia mastitis
Blockage of lactiferous ducts due to squamous metaplasia leads to dilatation and inflammation.
Strongly associated with cigarette smoking
How does duct ectasia mastitis present
Nipple discharge
Tenderness or pain
Nipple retraction or inversion
A breast lump (pressure on the lump may produce nipple discharge)
What is the cause of breast abscess
Progression of untreated infective mastitis; walled-off collection of infection forms
How do Mastitis and Breast Abscesses present?
● Symptoms include: fever, breast pain / tenderness (often during breastfeeding)
● Signs include: erythema, swelling, firmness.
● Duct ectasia is also associated with nipple discharge
How is Mastitis investigated
usually a clinical diagnosis based on history and examination findings
How is Breast Abscesses investiagted
breast ultrasound and diagnostic needle
aspiration.
How is Lactational Mastitis managed
○ First Line: continued breastfeeding / milk expression plus simple analgesia
○ Second Line: >24 hour duration / severe pain - add PO flucloxacillin.
erythromycin when allergic to penicillin.
What is most common bacterial cause of Mastitis
Staphylococcus aureus.
How is Non-lactational Mastitis managed
First line: PO flucloxacillin
How are Breast Abscess managed
First Line: needle aspiration and drainage plus flucloxacillin (dependent on local
policy).
Why is the incidence of breast cancer thought to be increasing?
Western lifestyle.
Screening.
Increasing life expectancy.
What percentage of women who have a mammogram will be called back for more tests?
4/100 will need more tests.
1/4 of these women will then be found to have cancer.
Name 3 modifiable RF’s for breast cancer.
Alcohol intake.
Obesity.
Use of HRT/OCP.