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Updated: Aug 7, 2026

13:44
Detection of Architectural Distortion in Prior Mammograms via Analysis of Oriented Patterns
Published on: August 30, 2013
[Experiences of the Bavarian mammography screening program]
J Nährig1, H Höfler, S H Heywang-Köbrunner
1Institut für Allgemeine Pathologie und Pathologische Anatomie, Technische Universität, Ismaninger Strasse 22, 81675, München, Germany. joerg.naehrig@lrz.tum.de
Der Pathologe
|July 22, 2006
Summary
Pathologists achieved high diagnostic agreement (93%) in evaluating breast biopsies for the Bavarian Mammography Screening Program. Consistent diagnosis is crucial for mammography screening success.
Area of Science:
- Pathology
- Oncology
- Radiology
Context:
- The Bavarian Mammography Screening Program, initiated in April 2003, aims to improve early breast cancer detection.
- Accurate histopathological diagnosis of breast biopsies is critical for effective screening program outcomes.
Purpose:
- To analyze the diagnostic consistency of vacuum-assisted stereotactic and core needle breast biopsies evaluated by pathologists.
- To assess the concordance rate in histopathological reporting within a large-scale mammography screening setting.
Summary:
- A blinded evaluation of 1,357 breast biopsies involved 32 pathologists, with each case reviewed by two independent pathologists.
- The study found a high concordance rate (93%) for the B-classification, indicating strong diagnostic agreement, particularly for well-defined benign and malignant lesions.
- Discrepancies were noted, often stemming from misapplication of the B-classification or differing interpretations of benign and borderline lesions.
Impact:
- The findings underscore the importance of rigorous quality control, including interdisciplinary consensus conferences and audit rounds for pathologists, to ensure the success of mammography screening programs.
- High diagnostic agreement is essential for reliable patient management and treatment decisions in breast cancer screening.
