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Paraffin tissue block radiography: adjunct to breast specimen radiography
M Rebner1, M A Helvie, D R Pennes
1Department of Radiology, University of Michigan Medical Center, Ann Arbor.
Radiology
|December 1, 1989
Summary
Radiography of excised breast tissue helps locate nonpalpable lesions. Paraffin block radiography aids pathologists in identifying microcalcifications missed in initial histopathology, improving diagnostic accuracy.
Area of Science:
- Radiology
- Pathology
- Oncology
Background:
- Excision confirmation of nonpalpable breast lesions relies on specimen radiography.
- Pathologists may fail to identify lesions histologically, even when microcalcifications are present in excised tissue.
Observation:
- The study presents five cases where suspicious microcalcifications were excised but not initially identified by pathologists.
- Paraffin tissue block radiography was employed to pinpoint the specific blocks containing these microcalcifications.
Findings:
- In all five cases, radiography of paraffin blocks successfully identified the tissue blocks containing microcalcifications.
- Subsequent histopathological examination of the re-sectioned blocks confirmed the presence of microcalcifications.
- One case demonstrated a change in diagnosis from intraductal hyperplasia to intraductal carcinoma with focal invasion after this technique was applied.
Implications:
- Paraffin tissue block radiography can be a valuable tool when initial histopathological examination fails to locate mammographically detected microcalcifications.
- This technique enhances diagnostic accuracy for breast lesions, potentially altering patient diagnosis and treatment plans.
- It aids in bridging the gap between radiological findings and histopathological confirmation, especially for subtle or nonpalpable abnormalities.