Breast Flashcards
(32 cards)
Intermediate calcifications (types)
- Amorphous/indistinct
- Coarse heterogeneous
Suspicious calcifications (types)
- Fine linear branching
- Fine pleomorphic
Popcorn calc = ?
Fibroadenoma (involuting)
Amorphous calc: most likely diagnosis?
Fibrocystic change
Sclerosing adenosis
Low suspicion distribution of calcs?
Regional
Diffuse/scattered
Usually fibrocystic change
High suspicion distribution of calcs?
Linear > segmental > grouped
Grouped may be fibrocystic change, but worrisome if new
T/F: Pagets disease of the breast is invasive
False
High grade DCIS – basically carcinoma in situ of the nipple epidermis
Morphology of a tubular adenoma
- Spiculated and small
- Associated with radial scar
- Slow growing
- Good prognosis
Which is worse for a cancer: spiculated or circumscribed?
- Circumscribed = bad
- Spiculated = desmoplastic reaction
Lobulated T2 hyperintense, enhancing breast mass… what subtype of IDC?
Mucinous (or colloid)
Young pt with BRCA mutation gets cancer, large axillary nodes… subtype of IDC?
Medullary
Complex cystic and solid mass on US… subtype of IDC?
Papillary
Bx proven fibroadenoma… but it grew __% over ___ timeframe. dx?
- 20% in 6 months
- Phyllodes tumor
Age group for fibroadenoma vs phyllodes tumor?
FA: mean age = 30 (25-40yo)
PT: mean age = 45 (40-60yo)
- Multiple breast cancers in SAME quadrant of breast = ?
- Multiple breast cancers in DIFFERENT quadrants = ?
Same = multifocal Different = multicentric
Who is more likely to get bilateral breast cancers?
- BRCA
- Lobular carcinoma
- Multicentric cancers
Shrunken breast?
Invasive lobular carcinoma
DDx for architectural distortion?
Radial scar
Post surgical scar
Breast cancer (IDC or ILC)
Big breast, unilateral skin thickening…
Type of cancer?
What’s going on?
Bonus, what if the breast were small with thickening?
- Inflammatory carcinoma
- Invasion of dermal lymphatics
bonus - Invasive lobular carcinoma (shrunken breast)
WHEN can you call a BI-RADS 3?
Diagnostic mammo, baseline exam (no priors)
WHAT findings qualify as BI-RADS 3?
- Grouped round calcifications on a BASELINE
- Looks like a fibroadenoma on a BASELINE (could grow = phyllodes)
- Focal asymmetry without calcs or distortion on a BASELINE
How long is followup on a BI-RADS 3?
2 years (or upgrade if the findings changes)
BI-RADS 3 = __% chance malignancy?
<2%
BI-RADS 4 = __% chance malignancy?
2%-95%
