UW Radiology Review Course Breast Calcifications€¦ · UW Radiology Review Course Breast...
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UW Radiology Review CourseBreast Calcifications
Grace Kalish, MD
Vantage Radiology
BI-RADS 5th Edition
Benign Suspicious
Skin Amorphous
Vascular Coarse heterogenous
Large “rod like” Fine pleomorphic
Coarse “popcorn” Fine linear or fine linear branching
Round and punctate
Rim
Milk of calcium
Dystrophic
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Changes
• Rim (previously rim, “eggshell” and “lucent centered”)
• Round and punctate clarified:– Round >0.5mm but <1mm
– Punctate <0.5mm
• Amorphous (no indistinct)
• Elimination of the “Indeterminate” category
Distribution
• Diffuse
• Regional
• Clustered (formerly “Grouped”)
• Linear
• Segmental
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Case 1
Question: What is the best BI-RADS description of these calcifications?
1. Coarse, diffuse
2. Round, diffuse
3. Dystrophic, diffuse
4. Coarse heterogenous, diffuse
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Discussion: Coarse
• Coarse-- classically large (>2-3mm)
• Round – usually between 0.5-1mm
• Dystrophic – irregular in shape
• Coarse heterogenous – between 0.5-1mm
Case 2. Diagnostic
Mag CC Mag ML
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Question: What is the best BI-RADS description of these calcifications?
1. Fine linear, clustered
2. Milk of Calcium, clustered
3. Coarse heterogenous, clustered
4. Amorphous, clustered
Discussion: Milk of Calcium
• Milk of Calcium, clustered– Apparent change is the most important feature
CC
ML ML
CC
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Case 3. Baseline Screen
Question: What is the best BI-RADS assessment category?
1. BI-RADS 2
2. BI-RADS 3
3. BI-RADS 0
4. BI-RADS 1
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Question: What is the best BI-RADS assessment category?
1. BI-RADS 2
2. BI-RADS 3
3. BI-RADS 0
4. BI-RADS 1
Discussion: Screening Mammogram Recommendations
– Options are BI-RADS 0, BI-RADS 2, or BI-RADS 1
– These calcifications are indeterminate without diagnostic evaluation
– No need to describe morphology on screen
– Sufficient to state that there are calcifications in the right breast at 2 to 3 o’clock
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Case 3. Diagnostic
Question: What is the best BI-RADS assessment category?
1. Benign – BI-RADS 2
2. Short term follow up – BI-RADS 3
3. Biopsy – BI-RADS 4
4. Biopsy – BI-RADS 5
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Question: What is the best BI-RADS assessment category?
1. Benign – BI-RADS 2
2. Short term follow up – BI-RADS 3
3. Biopsy – BI-RADS 4
4. Biopsy – BI-RADS 5
Discussion: Coarse Heterogenous
• Biopsy. BI-RADS 4
• Coarse heterogenous, clustered.– 13% likelihood of malignancy upon biopsy
• BI-RADS 5 reserved for fine pleomorphic/linear– 70% likelihood of malignancy upon biopsy
Source: D’Orsi CJ, Sickles EA, Mendelson EB, Morris EA . ACR BI-RADS Atlas. Breast Imaging Reporting System. 5th Edition. 2013. pg.61
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Case 4. Screening.
Question: What is the best BI-RADS assessment category?
1. BI-RADS 2
2. BI-RADS 1
3. BI-RADS 0
4. BI-RADS 3
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Discussion
• BI-RADS 2 or B-RADS 1– Skin, diffuse
– Inframammary fold (IMF), parasternal, axilla, and around the areola
– Individual groups <5mm
– If you mention them, BI-RADS 2
Skin Calcs - Atypical
CC
ML
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Tangential view shows the calcifications to be in the skin
Case 5. Diagnostic.55 year old with new calcifications
CC Mag ML Mag
Each calcification is <0.5mm
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1. Round, clustered
2. Punctate, clustered
3. Amorphous, clustered
4. Milk of calcium, clustered
Question: What is the best BI-RADS description of these calcifications?
Discussion: Punctate
• Round are >0.5mm but <1mm
• Margins are visible
• Do not layer
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Question: What is the best BI-RADS assessment category?
1. BI-RADS 0
2. BI-RADS 2
3. BI-RADS 3
4. BI-RADS 4
Discussion
• If new clustered, linear, segmental, or adjacent to known cancer = must biopsy
• These were DCIS upon biopsy
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Case 6. Diagnostic
ML Mag
Each calcification is <0.5mm
1. Coarse heterogenous, clustered
2. Fine pleomorphic, clustered
3. Round, clustered
4. Fine linear/branching, clustered
Question: What is the best BI-RADS description of these calcifications?
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Discussion: Fine pleomorphic
• Fine pleomorphic, clustered– Each calcification usually less than 0.5mm
– 29% of all biopsied positive
• Coarse heterogenous– Usually >0.5mm but <1mm
• Fine linear/branching– Contains a branch point
Source: D’Orsi CJ, Sickles EA, Mendelson EB, Morris EA . ACR BI-RADS Atlas. Breast Imaging Reporting System. 5th Edition. 2013. pg.61
Case 7. Screening.
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Case 7. Screening.
Case 7
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1. Fine linear/branching, segmental
2. Vascular, segmental
3. Large, rod-like, segmental
4. Coarse heterogenous, segmental
Question: What is the best BI-RADS description of these calcifications?
Discussion: Large rod-like
• Large, rod-like calcifications– Associated with duct ectasia
– Most are >0.5mm
– Ductal distribution, radiating
– Occasionally branching
– Usually seen in women who are >60
• BI-RADS 2 or BI-RADS 1
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Case 8. Diagnostic. New Calcifications.
1. Fine pleomorphic, regional
2. Fine linear/branching, regional
3. Milk of calcium, regional
4. Large, rod-like, regional
Question: What is the best BI-RADS description of these calcifications?
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Discussion: Fine linear/branching
• <0.5mm versus large/rod-like >0.5mm
• Branching
• PPV of 70%
• Invasive carcinoma upon biopsy
Source: D’Orsi CJ, Sickles EA, Mendelson EB, Morris EA . ACR BI-RADS Atlas. Breast Imaging Reporting System. 5th Edition. 2013. pg.61
Case 9. Screening.
2000 2009 2013
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1. Coarse heterogenous
2. Dystrophic
3. Coarse, popcorn
4. Rim
Question: What is the best BI-RADS description of these calcifications?
Discussion: Coarse popcorn
• Increasing but conforming to expected pattern– Large >2-3 mm
– Associated with benign-appearing stable mass
• BI-RADS 2
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Case 10. Screening.73 year old with history of prior breast cancer,
status post lumpectomy 10 years ago
CC
MLO
1. Rim
2. Fine pleomorphic
3. Amorphous
4. Coarse heterogenous
Question: What is the best BI-RADS description of these calcifications?
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Discussion: Rim
• Formerly “eggshell,” and “lucent centered”
• Calcium <1mm when viewed on edge
• Fat necrosis
• Calcifications in walls of cysts
Case 12. Diagnostic.New Calcifications.
CC Mag
ML Mag
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1. Fine pleomorphic, clustered
2. Round, clustered
3. Milk of calcium, clustered
4. Amorphous, clustered
Question: What is the best BI-RADS description of these calcifications?
Discussion: Amorphous
• Formerly “indistinct”
• Hazy
• Bilateral diffuse can be benign
• otherwise biopsy
• PPV is 20%
• These were benign
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Case 12. Diagnostic after Baseline
Mag CC
Mag ML
1. Punctate, diffuse
2. Punctate, regional
3. Amorphous, diffuse
4. Round, regional
Question: What is the best BI-RADS description of these calcifications?
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Discussion: Punctate, Regional
• Regional usually >2cm
• Punctate <0.5mm
• Regional PPV 26%
• OK to BI-RADS 3 since baseline. If not, biopsy.
• These were biopsied and were benign.