Top 10: Best of Breastmsrads.web.unc.edu/files/2018/04/BestBreastA.pdfFIBROADENOMA Most common...
Transcript of Top 10: Best of Breastmsrads.web.unc.edu/files/2018/04/BestBreastA.pdfFIBROADENOMA Most common...
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Top 10: Best of Breast
Department of Radiology April 2018 Dr Jordan
Outline
1. Ten Common Breast Scenarios illustrated in the language of Breast Imaging, Breast Imaging Data and Reporting System BI-RADS®
2. Rate the module
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Breast Imaging Reporting and Data System o Developed in 1993 by ACR to improve the reporting of
mammogramso Standardized reporting to reduce confusion in breast
imaging interpretations and management recommendations
o Late UNC Professor Emeritus Robert McLelland original BI-RADS® committee
o BI-RADS®-Mammography Fifth Edition 2013BI-RADS®-Ultrasound Second Edition 2013BI-RADS®-MRI Second Edition 2013
Now LI-RADS, Lung-RADS, TI-RADS, PI-RADS, HI-RADS
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o Quality assurance toolo Facilitates outcomes monitoringo Standardized lexicon improves clarity of thought o Standardized lexicon improves pt care by reducing
ambiguity in reportso Establishes framework for breast imaging reports
o BIRADS #0-6 with 1 2 3 4 5 and 6 as final category designations and 0 as an incomplete category
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o BI-RADS® Category 1: Negative
BI-RADS® Category 1: Negative
RT MLO LT MLO RT CC LT CC
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BI-RADS® Category 2: Benign
RT CC RT CC MAG
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BI-RADS® Category 2: Benign
RT CC RT CC MAG
FIBROADENOMAMost common breast mass in pts <35 yoContain stromal tissue and breast ductulesSensitive to hormone changes - egpregnancyOval mass and may contain calcificationsNot all FAs are definitely benign and biopsy is recommended for newly palpable or increasing in size or demonstrating suspicious features on exam
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BI-RADS® Category 3: Probably Benign
RT CC LT CC
BIRADS 3 findings < 2% risk of malignancy, by definition
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BI-RADS® Category 3: Probably Benign
RT CC LT CC
BIRADS 3 findings < 2% risk of malignancy, by definition
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BI-RADS® Category 4: Suspicious
RT MLO LT MLO
BIRADS 4 findings 2-95% risk of malignancy, by definition
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RT MLO LT MLO
Invasive Lobular CarcinomaAccounts for 10% CALobule rather than duct originWomen in early 60s slightly older than IDCPresent as thickeningMultifocal, multicentric, bilateralAsymmetry, architectural distortion or occult on mammogramIndistinct mass on USMRI has important role Irregular mass amorphous calcsLUOQ IHC: (ER, PR +) HER2 -
BI-RADS® Category 4: Suspicious
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LT MLO LT MLO MAG
BI-RADS® Category 5: Highly Suggestive of Malignancy
BIRADS 5 findings >95% risk of malignancy, by definition
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LT MLO LT MLO MAG
BI-RADS® Category 5: Highly Suggestive of Malignancy
BIRADS 5 findings >95% risk of malignancy, by definition
Invasive Ductal Carcinoma NSTAccounts for 50-75% invasive cancersHeterogeneous group of tumors without sufficient histologic features to be classified more specificallyDuctal originPresent as mass, size variesMammogram, US, and MR evident2.1 cm spiculated mass LUOQ w fine pleomorphic calcifications
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BIRADS 6 findings 100% risk of malignancy, by definition
RT MLO RT MLO 3 mos later
BI-RADS® Category 6: Known Biopsy-Proven Malignancy
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RT MLO LT MLO
o BI-RADS® Category 0: Incomplete - Need Additional Imaging Evaluation and/or Prior Mammograms for Comparison
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RT MLO LT MLO
o BI-RADS® Category 0: Incomplete - Need Additional Imaging Evaluation and/or Prior Mammograms for Comparison
1. Recalled patient for bilateral axillary ultrasound -> confirmed unilateral left lymphadenopathy
2. US-guided CNB recommended -> adenocarcinoma of breast primary
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o BI-RADS® Category 0: INCOMPLETE - NEED ADDITIONAL IMAGING EVALUATION AND/OR PRIOR MAMMOGRAMS FOR COMPARISON
o BI-RADS® Category 1: NEGATIVEo BI-RADS® Category 2: BENIGN o BI-RADS® Category 3: PROBABLY BENIGN o BI-RADS® Category 4: SUSPICIOUS o BI-RADS® Category 5: HIGHLY SUGGESTIVE OF
MALIGNANCY o BI-RADS® Category 6: KNOWN BIOPSY-PROVEN
MALIGNANCY
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o Category 0: INCOMPLETE - NEED ADDITIONAL IMAGING EVALUATION AND/OR PRIOR MAMMOGRAMS FOR COMPARISON
Recall for additional imaging and/or comparison with prior examinationso Category 1: NEGATIVE (0% risk)
Routine mammography screeningo Category 2: BENIGN (0% risk)
Routine mammography screeningo Category 3: PROBABLY BENIGN (<2% risk)
Short interval 6 month follow-up OR continued surveillanceo Category 4: SUSPICIOUS (2-95% risk)
Biopsy should be performed in the absence of clinical contraindicationso Category 5: HIGHLY SUGGESTIVE OF MALIGNANCY (>95% risk)
Biopsy should be performed in the absence of clinical contraindicationso Category 6: KNOWN BIOPSY-PROVEN MALIGNANCY (100% risk)
Surgical excision when clinically appropriate
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RT MLO LT MLO
o BI-RADS® Category 0: Incomplete - Need Additional Imaging Evaluation and/or Prior Mammograms for Comparison
BENIGN AXILLARY LN (BI-RADS® 2)
BilateralFrequently reactive in inflammatory ds and HIV Sarcoid, SLE, psoriasis, analogous dsKnown dx Lymphoma - add wording “known lymphoma”When bilateral LN new or increasing -rethink BI-RADS® 4
SUSPICIOUS AXILLARY LN (BI-RADS® 4)
UnilateralDDx breast carcinoma, metastatic melanoma, ovarian CA, other CACareful eval ipsilateral breastBilateral axillary US to determine if uni/bilateral(Clinical eval for mastitis, breast abscess, skin infx, cat scratch fever ie convert to 2)Proceed to FNA or CNB
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1. Young female patient - why did she present for care?
2. Clinical history of key import?3. Should we pursue more imaging?
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1. Young female patient - why did she present for care?
2. Clinical history of key import?3. Should we pursue more imaging?
BREAST ABSCESSProgression of mastitis most common etiologyDelayed or inadequate antibiotic treatmentStaph aureus in puerperal nursing woman, also strepNonpuerperal abscesses typically contain mixed flora S aureus, streptococcal species and anaerobes Pain, erythema, edema, massRound or irregular complex mass, fluid-debris levels or mobile debrisUS study of choice for diagnosis and IR guidanceUS surveillance
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RT MLO LT MLO
COMP MAGS
1. Elderly male patient - why did he present for care?
2. Clinical history of key import?3. Should we pursue more imaging?
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RT MLO LT MLO
COMP MAGS
1. Elderly male patient - why did he present for care?
2. Clinical history of key import?3. Should we pursue more imaging?
3 times for gynecomastia: neonate, puberty, senescence3 types gynecomastia: nodular, dendritic, diffuse3+ etiologies gynecomastia: physiologic, drugs, hyperestrogen, systemic diseases cirrhosis, CRFGynecomastia: soft tender mass, mobile, bilateral, central to nipple, typical mammogram flame-shaped appearance with no secondary features, no axillary LN
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TOP TEN 10: Breast CystsBreast Simple CystOccur in 10% of all women May be palpable, painful, grow/regress quicklyAnechoic mass, imperceptible wall, posterior enhancementPainful cysts can be aspirated under ultrasound - benign type fluid is yellow, green
Path slides courtesy of DrThomas Lawton
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TOP TEN 10: Breast CystsBreast Simple CystOccur in 10% of all women May be palpable, painful, grow/regress quicklyAnechoic mass, imperceptible wall, posterior enhancementPainful cysts can be aspirated under ultrasound - benign type fluid is yellow, greenBreast Complicated CystHomogeneous low level internal echoesMay have a layered appearanceFluid-debris levels may shift with pt positionMay also contain brightly echogenic foci that scintillate as they shift
Path slides courtesy of DrThomas Lawton
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➢ Fibroadenoma➢ Breast Cancers: Invasive Ductal, Invasive Lobular➢ Lymphadenopathy➢ Breast Abscess➢ Gynecomastia➢ Breast Cysts
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➢ Any questions?
➢ http://guides.lib.unc.edu/RadclerksBreast Imaging: The Requisites. Ikeda and Miyake (2017)
➢ Video shorts:Views You Can Use Male Breast
Emergency BreastScreening Mammography