Mamm Flashcards
What findings can get a BI-RADS 3? (6)
- noncalcified circumscribed solid mass
- focal asymmetry
- solitary grp of punctate calcifications
- typical fibroadenoma
- isolated complicated cyst
- clustered microcysts
What is the recommendation for BI-RADS 3?
- unilat short term 6mo fu
- if stable, bilat 12 mo fu (from time of screening)
- if stable, another 24 mo fu (from time of screening)
BI-RADS 3 lesion –> followed for 2 years –> stable –> then what?
categorized as BI-RADS 2 –> back to routine screening
BI-RADS 3 –> likelihood of cancer (%)?
<2%
BI-RADS 3 –> what category is it?
probably benign
BI-RADS 4 –> what category is it?
suspicious
What is the recommendation for BI-RADS 4?
biopsy should be considered
BI-RADS 4 –> likelihood of cancer (%)?
2-95%
what are the subcategories of BI-RADS 4? What are their % likelihood of cancer?
- 4A: low suspicion for malignancy (2-10%)
- 4B: mod (10-50%)
- 4C: high (50-95%)
What findings can get a BI-RADS 4A? (3)
- partially circumscribed mass, suggestive of (atypical) fibroadenoma
- palpable, solitary, complex cystic and solid cyst
- probable abscess
What findings can get a BI-RADS 4B? (3)
- grp amorphous or fine pleomorphic calcifications
- nondescript solid mass w indistinct margins
What findings can get a BI-RADS 4C? (2)
- new grp of fine linear calcifications
- new indistinct, irregular solitary mass
What category is BI-RADS 5?
highly suggestive of malignancy
BI-RADS 5 –> % likelihood of cancer?
> 95%
What findings can get a BI-RADS 5? (3)
- spiculated, irregular high density mass
- segmental or linear arrangement of fine linear calcifications
- irregular spiculated mass w assoc pleomorphic calcifications
80F –> screening –> new circumscribed mass –> ddx? (3)
since new –> most likely malignancy:
- mucinous CA
- papillary
- medullary
inflammatory breast cancer –> histologic pathognomonic finding?
dermal lymphatic invasion
DCIS –> classic MRI pattern of enhancement?
clumped non-mass enhancement in ductal distribution
fibrocystic change –> MRI pattern of enhancement?
diffuse stippled background enhancement
core needle bx –> LCIS –> next step?
surgical excision
male –> palpable breast mass –> most likely dx?
gynecomastia
diabetic mastopathy –> classic sonographic findings
irreg hypoechoic mass –> marked posterior acoustic shadowing
pseudoangiomatous stromal hyperplasia –> what is it? etiology?
benign stromal overgrowth derived from possible hormonal etiology
BI-RADS 3 category lesion –> next step would be bx in what situation?
patient not able to comply with followup
breast MRI –> kinetic curve enhancement pattern –> which has highest PPV for CA?
wash out
ruptured implant –> MRI noncontrast or MRI with/wo?
noncontrast
last 6mo of residency –> how many mammo studies needed?
240
what are the 3 types of kinetic curves for breast MRI? what is their significance?
I persistent: benign
II plateau: concerning for malig
III washout: strongly suggestive of malignancy
MQSA –> phantom testing –> how often?
wkly
MQSA) requirements state that a facility must send each patient a summary of the mammography report within how many days?
30day
Approximately what percentage of breast cancers occur in men?
1%
invasive lobular CA –> accounts for 20% of all breast CA cases –> T/F?
F
10%
invasive lobular CA –> typical US appearance –> ill-defined hypoechoic mass –> T/F?
T
