Endoscopic ultrasonography‐fine needle aspiration of solid pancreatic masses: Do we need the fourth pass? A prospective study

Endoscopic ultrasonography-guided fine-needle aspiration (EUS-FNA) is important for the differential diagnosis of solid pancreatic lesions. Sample adequacy is related to the number of needle passes, and European guidelines recommend three to four needle passes with a standard EUS-FNA needle. We aimed to evaluate the optimal number of passes with standard EUS-FNA needles in solid pancreatic lesions.Patients with solid pancreatic masses without...