Breast Flashcards
What are the 2 types of tissue in the breast?
fat
glandular
What is glandular tissue made up of?
ducts
lobules
What is the function of lobules?
secretory function
lined by epithelial cells
peripheral layer of myoepithelial cells
What is the chain of ductal
glandular tissue?
lobular ducts
extralobular ducts
lactiferous ducts
lactiferous sinuses
Describe the slide
lobules
ducts
fat tissue
Describe the higher magnification
myoepithelial cells - smaller dark nuclei
epithelial cells
stroma
What are common reasons for breast pain presentation?
cyclical - around the menstrual cycle
breast lump
discharge
What is cyclical mastalgia?
pain usually pre-menstrually
resolves during period
What can be advised?
evening primrose oil
reassure no malignancy
How do you describe nipple discharge?
single duct or multi-duct
clear, opaque or blood-stained
What is implied by clear discharge?
physiological/innocent
prolactin-secreting tumour of pituitary gland
How can you distinguish between single and multi-duct?
single - discharge pressing on one single around nipple
multi - discharge pressing anywhere around nipple
What is implied by multi-duct and opaque discharge?
mammary duct ectasia
What is implied by single duct?
underlying pathology
papilloma or papillary lesion
DCIS
When is duct ectasia common?
women 35-45
smokers
What is the management?
no treatment
duct excision if causing extreme problems
What is intraductal papilloma?
single duct
may be blood stained
rarely malignant
What is this?
intraductal papilloma
fibrovascular core
epithelial and myoepithelial cells
Name the parts of the clinical assessment for a breast lump
history
examination
radiology (mammography/ultrasound)
needle biopsy (FNA/core)
What is important in the clinical history of a breast lump?
duration increase/decrease in size cyclical or constant pain skin changes (inflamm/tethering)
What is important in the clinical examination?
location size consistency (soft/firm/hard) character (focal/vague/smooth/irregular) skin changes (raise arms) axilla
Where are benign breast lumps more likely to occur?
lateral aspect
medial aspect of the breast are more likely malignant
How does mammography work?
X-ray
2 angles - craniocaudal and oblique
What kind of patient is mammography more effective in?
older patients
fatty tissue>glandular
What can an ultrasound tell you about a breast lump?
cystic or solid
outline of lesion
useful for image guided biopsy
What is reasassuring on an ultrasound?
cysts are almost always benign
smooth outline is likely benign
What are the 5 types of benign breast lump?
simple cyst fibrocystic change fibroepithelial chane papilloma fat necrosis
Where are simple epidermal inclusion cysts often found?
near skin surface
How are epidermal inclusion cysts formed?
in-folding of squamous epithelium containing trapped keratin
Where do deep-seated simple cysts arise in the breast?
dilated ducts or lobules
What do dilated duct cysts contain?
entrapped secretions
What are deep breast cysts often lined by?
apocrine epithelium
Why are deep breast cysts’ lining attenuated and thin?
because of the pressure of the secretions inside
What process causes breast cysts?
metaplastic