Endoscopic ultrasound-guided fine needle aspiration biopsy (EUS-FNA) is currently performed on a routine basis at many endoscopic centers and it is evident that this procedure has a major impact ...

Core-needle biopsies can also be ultrasound-guided, or a doctor may use an MRI or mammogram machine. This latter procedure is called a stereotactic breast biopsy. The ACS notes if the results of a ...