Benign breast DOs Flashcards
(40 cards)
Types of benign breast disorders
asymmetry, fibroadenoma, fibrocystic changes, gynecomastia
Composition of the breast
A ducts
B lobules
C dilated section of duct to hold milk
D nipple
E fat
F pectoralis major muscle
G chest wall/rib cage

Is breast asymmetry “normal”?
Normal for some female adolescents and women to exhibit a moderate amount of breast asymmetry
What counseling can you give to an adolescent w/breast asymmetry?
Reassurance
75% resolves by adulthood
always ask if they’re concerned – they won’t tell you.
What is a fibroadenoma?
Benign mass which develops from the ducts and stroma of the terminal portion of the mammary system
What causes a fibroadenoma?
unknown, probably abnormal sensitivity to estrogen
What can you counsel adolescents about fibroadenoma - incidence and timing?
- Most common breast mass (56-94% of all)
- Peak incidence 17-20 years
May see younger if they got period earlier
Characteristics of a fibroadenoma
- Asymptomatic rubbery, firm, non-tender
- freely mobile
- clearly demarcated
- oval or irregularly shaped
- enlarges slowly over weeks to months
- unilateral, 25% bilateral (not exact location)
“like a grape”
not under areola
DDx for fibroadenoma
- Juvenile (giant) fibroadenoma
- other fibroadenoma variants
- breast cysts variation w/cycle
- fibrocystic change
- virginal hyperplasia
- breast abscess or mastitis uncommon w/teens unless bfing or piercing. Signs of inflammation, not clearly demarcated.
- cystosarcoma phylloides
- adenocarcinoma
- intraductal papilloma
- fat necrosis
- lipoma
- hematomapainful, +/- bruising, Hx of trauma, not clearly demarcated
- gynecomastia
- mestastatic disease (leukemia, lymphoma, ovarian cancer)
- Miscellaneous:
- mammary duct ectasia
- nipple adenoma
- interstitial (parenchymal)fibrosis
- ductal adenocarcinoma
- nipple keratoma
- intraductal granuloma
- sclerosing adenosis
- angiosarcoma
- dermatofibromatosis
- neurofibromatosis
- tuberous mastitis
- hemangioma
- papilloma sarcoidosis
- granular cell myoblastoma
- lymphangioma
MGMT of fibroadenoma in an adolescent
- Reassure that incidence of breast cancer is < 1% in females <20 years old - take it seriously nonetheless!
- < 3 cm - measure and observe mass 2-4 months
If remains unchanged 4-6 months or enlarges excision can be performed – caution: no guarantee won’t get another. Consult on scars.
fibroadenoma: what will you see on U/S?
U/S will show smooth margins, hypoechoic and homogeneous
What are fibrocystic changes to the breast?
Firm, mobile cord-like nodularities diffusely throughout breasts
Etiology of fibrocystic changes
estrogen excess, progesterone deficiency, increased prolactin levels
In what population are fibrocystic changes more common?
caucasian females
Characteristics of fibrocystic changes
- Premenstrual tenderness
- change in breast size during cycle
- cord-like nodularities and cysts with a hx of enlarging and resolving during cycle
- nodules or lumps have a vague outline
- upper outer quadrant most common area affected, can happen anywhere in breast
DDx for fibrocystic changes
- Physiological mastodynia
- Simple breast cysts
Breast tenderness: consider teens never get fitted for bras. Pay attention to lines and where their pain is. Tell them to get measured by pro, or if they won’t go to YouTube.
MGMT of fibrocystic changes
- Watch over the course of several cycles
- heat
- firm supporting brassiere
- mild analgesics (Ibuprofen)
- low dose OCPs consistent E and P throughout cycle, so fewer hormonal fluctuations
Pt has “bump” on breast. Noticed over weekend. What would you want to ask?
Having period now? Change with cycle? OCPs? Pain - before or after you discovered it (may be poking often). Discharge? Trauma? Sx inflammation? FHx BC or fibrocystic changes? What are you worried it is?
Gynecomastia: what is it?
- Visible & palpable breast tissue development of males
Gynecomastia: size
May be as small as 1 cm and disc-like or as large fully developed female breast
gynecomastia: etiology
- Etiology unknown, probably related to increasing testosterone levels and the balance between estrogen and testosterone levels
Gynecomastia vs obesity - how can you tell the difference?
- Feels very different from obesity – glandular tissue feels like “uncooked chicken” – rubbery & firm*
- Can’t tell by looking- must palpate and measure.*
What are the types of gynecomastia?
Type I, Type II, Type III
How much of gynecomastia falls under Type I?
60-70%