Breast Flashcards
(227 cards)
What risk factors result in a >4 times relative risk of breast cancer?
Gene mutation
Lobular carcinoma in situ
Ductal carcinoma in situ
Atypical hyperplasia
Who can an USS help define a solid mass particularly well in?
Young women
Women with mammographically dense breasts
What investigation is needed for definitive diagnosis of breast cancer?
Image-guided core-needle biopsy
Ductal carcinoma in situ is usually not palpable. How does it appear on screening?
Malignant calcifications:
- Pleomorphic
- Casting
How is ductal carcinoma in situ diagnosed definitively?
Stereotactic vacuum biopsy
How does invasive lobular carcinoma spread?
Diffusely
How does invasive lobular carcinoma appear histologically?
‘Indian file’ pattern (not visible or palpable early)
What is always required following breast-conserving surgery?
Radiotherapy
What is a modified radical mastectomy?
Removes entire breast including:
- Overlying skin
- Axillary lymph nodes
What is preserved in a modified radical mastectomy and why?
Pectoralis major:
- Improve wound healing
- Better reconstruction
What are the indications for post-mastectomy radiotherapy?
> 3 nodes involved
Positive surgical margins
Tumours >5cm
What is the first line targeted drug therapy for malignant breast cancer?
Bevacizumab:
- Recombinant humanised monoclonal Ab against VEGF
How does Lapatinib work?
Dual inhibitor for EGFR and HER2 tyrosine kinases
When and with what is Lapatinib prescribed?
Advanced breast cancer and metastatic disease in those with HER+ disease and who have had previous therapy including: - An anthracycline and - A taxine and - Herceptin Prescribed with Capecitabine
What is Trastuzumab?
A HER2 inhibitor
How does cyclic mastalgia present?
Diffuse
Most intense premenstrual
Usually bilateral
How does non-cyclic mastalgia present?
Localised
Often persistent
Less responsive to treatment
How is mastalgia treated?
Evening primose oil
Tamoxifen
Topical NSAIDs
How does a breast cyst feel on examination?
Clearly defined
Soft
Mobile
Smooth
When is a breast cyst usually most tender?
Before menstruation
How can a breast cyst be diagnosed and treated?
FNA
How is mastitis treated?
Flucloxacillin 500mg PO every 6 hrs for 7 days
OR
Augmentin 625mg every 8 hrs for 7 days
When should antibiotics for mastitis be administered?
As soon as signs/symptoms:
- Fever
- Erythema
- Induration
- Tenderness
- Swelling
After treating mastitis, how should examination be carried out?
Examine every 3 days:
- Ensure response to therapy
- Ensure no abscess formation