Yield Rate for Procurement the Histologic Core With Endoscopic Ultrasound-guided Fine Needle Biopsy With 20-gauge Ultrasound Biopsy Needles for Solid Pancreatic Masses: Pilot Study

"The investigators will prospectively collect data base including patients who underwent EUS-guided biopsy with the 20-gauge ProCore histology needle for the evaluation of Pancreatic solid mass.~EUS procedures will be performed under sedation with linear echoendoscopes. Once the lesion will be penetrated, the stylet will be removed, and suction will be applied for 10 to 20 seconds by using a 10-ml syringe while moving the needle to and fro. All samples will processed at the pathology departments for histological analysis with documentation."