Breast Pathology Flashcards
Ectopic breast tissue is capable of exhibiting all of the pathologies which might be found in normal breast tissue. T/F?
True
Where in the body would ectopic breast tissue commonly be found?
In the ‘milk line’ between the axilla and the groin.
Ectopic breast tissue is only every composed of glandular material. T/F?
False - it may be fully formed and might include a nipple
What syndromes are associated with breast hypoplasia?
Ulnar-mammary syndrome
Poland syndrome
Turner’s syndrome
Congenital adrenal hyperplasia
Nipple inversion present from birth is a sign of breast malignancy. T/F?
False - congenital nipple inversion is benign
New nipple inversion is always a sign of breast malignancy. T/F?
False - this may be a sign of breast malignancy but this is not always the case
When would a woman be most likely to experience acute mastitis?
When breastfeeding
What are the symptoms of acute mastitis?
Flu like symptoms Fever Breast pain Decreased milk outflow Breast warmth, firmness, erythema, swelling and tenderness
It is possible to have abscess formation with acute mastitis. T/F?
True
Why is acute mastitis more common during breastfeeding?
Breastfeeding can cause fissuring of the skin which allows the entry of organisms and stagnant milk allows the growth of these organisms
What are the possible causes of granulomatous inflammation of the breast?
Systemic granulomatous diseases such as tuberculosis and sarcoidosis
Idiopathic granulomatous mastitis (when infection has been clinically excluded)
Reactions to ruptured implants
Why is it important that infection is clinically excluded before diagnosing idiopathic granulomatous mastitis?
The treatment for idiopathic granulomatous mastitis is with steroids which are immunosuppressants which would make an infectious cause of granulomatous breast disease worse
What is the cause of periductal mastitis?
The central ducts become inflamed, blocked and dilated
Associated with chronic inflammation and scarring
What lifestyle factor is related to the development of periductal mastitis?
Smoking
What are the symptoms of periductal mastitis?
Redness, swelling and tenderness around nipple
Mass beneath nipple
Nipple retraction
Nipple discharge
Periductal mastitis can cause a breast abscess. T/F?
True
What causes fat necrosis of the breast?
Trauma including external trauma, previous surgery or other inflammatory conditions which damages the breast fat.
What is the histological appearance of fat necrosis in the breast?
Necrotic fat
Chronic inflammation
Presence fo multinucleate cells
Fat necrosis can manifest as a lump, Why is this significant?
It can be mistaken for cancer
The boundary between hyper plastic and dysplastic change in breast tissue can be blurred. T/F?
True
What types of hyperplastic lesions in the breast can increase the risk of breast cancer or are related to dysplasia?
Some types of columnar cell change
Atypical forms of ductal hyperplasia
In-situ lobular neoplasia
What type of hyperplastic change in the breast is most common?
Fibrocystic change
What is the cause of fibrocystic change in the breast?
Aberrant response of normal breast tissue to fluctuations in cyclical hormones
What is the clinical presentation of fibrocystic change in the breast?
Multiple lumps and bumps in the breast tissue
Often worse before menstruation
What microscopic abnormalities can be present in fibrocystic change in the breast?
Small and large cysts More glands or lobar tissue More fibrous stroma Epithelial hyperplasia Apocrine metaplasia Micro-calcification Columnar cell changes
What microscopic abnormalitiy, which is sometimes seen in fibrocystic change of the breast, can be seen on mammography?
Micro-calcification
In fibrocystic change in the breast, there is often an increased the glandular and lobular tissue. What is the term for this?
Adenosis
In fibrocystic change in the breast, there can be apocrine metaplasia. What does this mean?
The epithelial cells of the cysts change to look like apocrine sweat glands
A radial scar is a hyperplastic change in the breast. What characteristic of radial scars differentiate it from breast cancer?
Fibrosis and elastic material at centre
Star shaped or flower head appearance
Trapped glands are only. ‘pseudo-infiltrative’
Myoepithelial cells present
Myoepithelial cells are not present in breast cancers. T/F?
True
What is the median age for a breast cancer diagnosis?
mid 60s
What are the risk factors for the development of breast cancer?
Early menarche, late menopause, late 1st pregnancy
HRT therapy, oral contraceptive use
Dense breast on mammography
Alcohol and smoking
Positive FHx
Rare genetic syndromes e.g. BRCA1+2, Li Fraumeni syndrome