Abstract:
In the evaluation of suspicious breast lesions it was looked for alternatives for common open biopsy. In the course of time several minimal invasive methods were developed. First fine needle aspiration cytology (FNAC) was set up, later came large-core needle biopsy (LCNB) and vacuum-suction biopsy. This study was undertaken to access the accuracy of percutaneous LCNB of breast lesions and the impact of further proceedings (FNAC and open biopsy). In a two year period 200 breast lesions were investigated. Every patient was undertaken physical examination , imaging (mammography, ultrasound and if necessary nuclear magnetic resonance). Image-guided LCNB is an effective tool for the diagnosis of breast lesions which shows only a low rate of minor complications. Sensitivity in our study was 98,86 %, specitivty is 100 % and the prospective value is 75, 5 %. In 2 cases the histology of LCNB was false negative. In the study the frequency of insufficient samples of image-guided fine needle aspiration biopsy was 20, 2%. Percutaneous LCNB may spare many women the need for a more deforming, invasive surgical biopsy and therapy, especially in estimated benign breast lesions. In addition to provide histological diagnosis, LCNB is a reliable and effective method to determine morphobiological parameters. Patients can be especially selected for individually planned presurgical therapy. Follow up is essential, above all if no open biopsy was made. An imaging follow up ( for ex. ultrasound) and the repeat of the LCNB is recommended (if a progression of the breast lesion was found). Finally, LCNB is an accurate and cheap method, and an alternative to open biopsy, in a time when health care policy is influenced by cost consideration.