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Microcalcifications in benign breast diseases. A histological and histochemical study
Pathology, Research and Practice
|January 1, 1984
Summary
Benign breast microcalcifications are linked to metaplastic cells and their secretions, not normal tissue. These microcalcifications, often containing lipids, appear in various forms within fibroadenomas and other benign breast conditions.
Area of Science:
- Pathology
- Histology
- Breast Disease
Background:
- Microcalcifications in breast tissue are common findings.
- Understanding their origin and composition is crucial for diagnosis.
Purpose of the Study:
- To investigate the presence and characteristics of microcalcifications in benign breast diseases.
- To identify associations between microcalcifications and specific cellular or secretory components.
Main Methods:
- Histological examination of 100 fibroadenomas and 300 benign breast disease cases.
- Identification and classification of microcalcifications.
- Histochemical analysis for lipid content.
Main Results:
- Microcalcifications were found in 19% of fibroadenomas, 26% of fibrous disease, and 57% of fibrocystic disease.
- Benign microcalcifications were absent in normal mammary tissue.
- Microcalcifications were associated with metaplastic epithelial cells, their secretions, foam cells, and apocrine secretions.
- Two types observed: granular (intracellular) and homogeneous (secreted material).
- Compound lipids were a common feature in microcalcification-containing cells and matrixes.
Conclusions:
- Benign breast microcalcifications originate from metaplastic epithelial cells and their secretions.
- The presence of lipids is a key characteristic of these microcalcifications.
- Further research may explore the relationship between benign breast microcalcifications and calcifications in other tissues.