Diagnostic underestimation of atypical ductal hyperplasia and ductalcarcinoma in situ at percutaneous core needle and vacuum-assisted biopsies ofthe breast in a Brazilian reference institution

摘要

ObjectiveTo determine the rates of diagnostic underestimation at stereotactic percutaneous core needle biopsies (CNB) and vacuum-assisted biopsies (VABB) of nonpalpable breast lesions, with histopathological results of atypical ductal hyperplasia (ADH) or ductal carcinoma in situ (DCIS) subsequently submitted to surgical excision. As a secondary objective, the frequency of ADH and DCIS was determined for the cases submitted to biopsy.