Endoscopic Ultrasonography–Guided Fine-Needle Aspiration Biopsy of Suspected Pancreatic Cancer

In many institutions, computed tomography (CT)-guided percutaneous fine-needle aspiration (FNA) has become the procedure of choice for biopsies of pancreatic mass lesions. This method of biopsy and others, such as endoscopic retrograde cholangiopancreatography (ERCP) cytology, are problematic because of a substantial false-negative rate.To investigate the yield of endoscopic ultrasonography-guided FNA biopsies in patients who had negative...