Hastanemizde Nonpalpabl Meme Lezyonlu Bir Hasta Serisinde Stereotaktik Biyopsi Sonuçları

Abstract

Aim: Although screening mammography has a high sensitivity in the clinical detection of nonpalpable breast cancer, most mammographically suspicious lesions referred to biopsy are seen to be benign. The rate of malignancy in such lesions that are biopsied with needle–wire localization ranges from 10 to 36%. In this study, we aimed to compare with the literature the pathological results and Breast Imaging Reporting and Data System (BI-RADS) scores of lesions subjected to mammography and excisional biopsy after ultrasonography-guided needle–wire localization and calculate a positive predictive value for each category. Materials and Methods: By electronically reviewing patient files and using the International Statistical Classification of Diseases and Related Health Problems (ICD-10) codes, we identified patients who underwent excisional biopsy after stereotactic marking at the General Surgery Clinic of the Istanbul Sisli Hamidiye Etfal Training and Research Hospital between January 2003 and March 2009. A total of 64 patients were included in the study, of whom 43 had benign and 21 had malignant lesions on postoperative histopathological examination. Data on patient demographic characteristics, indications for marking, and histopathological diagnoses were recorded. The patient BI-RADS scores were determined based on the mammography and breast ultrasonography reports. The BI-RADS classification and histopathological examination results were compared in percentages. Results: The mean patient age was 48.9 (32–76) years. Based on the mammography reports, the most common indications for stereotactic marking and excisional biopsy were microcalcification cluster and spiculated mass. Histopathological examination results revealed malignancy in 8%, 51%, and 100% of the patients whose BI-RADS scores were mammographically determined to be BI-RADS 3, BI-RADS 4, and BI-RADS 5, respectively. Discussion and Conclusion: The BI-RADS-based classification of lesions detected by mammography and ultrasonography can help in predicting malignancy. While BI-RADS 4 and BI-RADS 5 lesions are referred to biopsy primarily, short-term follow-up of BI-RADS 3 lesions as an alternative to biopsy could reduce unnecessary biopsies.