Endoscopic Ultrasound-Guided Fine Needle Biopsy Using 22-Gauge Franseen Needle for the Histological Diagnosis of Solid Lesions: A Multicenter Prospective Pilot Study

Recently, a novel 22-gauge needle with three symmetric needle points and crown-shaped cutting heels, known as a Franseen needle, has been developed for endoscopic ultrasound-guided fine needle biopsy (EUS-FNB). To assess the histological material acquisition rate and histological diagnostic capability of the 22-gauge Franseen needle (AC22) during EUS-FNB for solid lesions. This study was designed as an open-label, multicenter, prospective,...