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Breast microcalcifications: the lesions in anatomical pathology
P Henrot1, A Leroux2, C Barlier2
1Service de radiologie, institut de cancérologie de Lorraine Alexis-Vautrin, 6, avenue de Bourgogne, 54519 Vandœuvre-lès-Nancy, France.
Diagnostic and Interventional Imaging
|February 15, 2014
Summary
Microcalcifications on mammograms are indirect signs of pathology. Radiologists assess their morphology, distribution, and clinical context to determine cancer risk, especially for specific types like DCIS.
Area of Science:
- Radiology
- Oncology
- Pathology
Background:
- Microcalcifications are common mammographic findings.
- Their morphologic patterns can indicate underlying pathological processes, but interpretation requires careful analysis.
- The Breast Imaging Reporting and Data System (BI-RADS) provides a framework for classifying microcalcifications.
Purpose of the Study:
- To review the interpretation of microcalcifications in mammography.
- To highlight the limitations of morphologic classification for benign microcalcifications.
- To emphasize the importance of a global approach in assessing microcalcification-associated risks.
Main Methods:
- Analysis of microcalcification morphology and classification according to BI-RADS.
- Evaluation of associated clinical and mammographic signs.
- Consideration of patient history, genetic factors, spatial distribution, number, and temporal evolution.
Main Results:
- Most microcalcifications classified as benign by BI-RADS are indirect signs of pathology.
- Round and punctate microcalcifications are exceptions to this rule.
- Polymorphous fine and linear fine microcalcifications are often associated with ductal carcinoma in situ (DCIS) with necrosis.
Conclusions:
- Radiologists must integrate multiple parameters beyond simple morphology for accurate risk assessment.
- Understanding the anatomy of the terminal ductal-lobular unit is crucial for interpreting microcalcifications.
- A comprehensive approach, considering clinical context and imaging features, is essential for evaluating microcalcification-related risks.
