Breast Flashcards
Do men have lobules?
No
- What is Amastia?
- Polymastia?
- Congenital absence of a breast.
- More than 2 breasts develop
how do breasts (and the pancreas) repair?
Fat necrosis (can mimic breast cancer)
Accessory breast tissue w/o a nipple may be found where?
axilla, don’t confuse w/ tumor
What is the most benign breast cancer? (90%)
Fibroadenoma found in upper outer quadrant.
What breast tissue is given to pathologist?
Anterior mid and deep axillary
What is the most common inflammatory breast condition?
Acute mastitis - lactating women, caused by Staph or Strep
What is a good growth median for bacteria?
stagnant breast milk. It can spread and cause localized or diffused breast swelling that in red and painful
How do bacteria invade breast tissue?
via dilated milk ducts or skin lacerations or suckling
What immune cells are seen in Acute Mastitis?
PMNs, if persistant = Incision and Drain
What breast disease is rare and mimics breast cancer (small lumps + retracted nipple)?
Chronic Mastitis - biopsy needed
Why would there be fibrous scars in breast tissue?
due to destroyed breast tissue from acute insult.
Previous breast trauma, proir surgery, or radiation can lead to ___ _______. this is sharply localized, solitary, and in 1 breast
Fat necrosis - hemorrhage with fat center that forms a chalk white foci.
What breast disease is characterized by a family history of heavy boggy breasts?
Fibrocystic Breast changes
What breast disease has palpable lumps that appear blue on autopsy or biopsy and create post puberty?
Fibrocystic Breast changes
When do women with fibrocystic breast changes get relief? What hormones regulate the relief?
after menopause. reduction in estrogen and progesterone from excretory ducts in the intralobular stroma
what causes fibrocystic breast changes that leads to fibrosis?
an imbalance of hormones in the ducts, lobules, or stroma
In Fibrocystic breast changes what is the loose intralobular connective tissue changed into?
Dense connective tissue rich in collagen and non-responsive to hormones
In Fibrocystic breast changes, cysts are formed because the ductal epithelium grows in the dense connective tissue. Why does the epithelium grow?
because it is still responsive to hormones. Becomes and trapped and creasts the cysts.
What is a blue-domed cyst?
Fibrocystic breast changes
What is the most common type of alteration in breasts?
Fibrocystic breast changes
Is there hyperplasia in the epithelium in Fibrocystic breast changes?
Yes
- Ductal epithelium continues to proliferate bc/ retains responsiveness to hormones
- Dilated ducts may become entrapped in _______ leading to formation of cysts.
- dense connective tissue stroma
Blue Domed Cysts: fibrosis & cysts (most common)
- What is always present??
Epithelial Hyperplasia
When epithelial hyperplasia becomes multilayered, w/ atypical nuclear change, this is referred to as _______. Which is the only change related to development of carcinoma.
Atypical Epithelial Hyperplasia
Does Atypical Epithelial Hyperplasia mean cancer?
No, only a SLIGHT risk increase (5%)
If you see roman arches, what is it?
Fibrocystic changes, Atypical Epithelial Hyperplasia
Does Fibrocystic breast changes affect both breasts?
Yes, changes are symmetrical. Patients complain of pain, nodularity and sensitive on palpation