The 19Gauge core and 22Gauge core needles have both been used for EUS-LB with good success. Previous studies have reported good safety and tissue adequacy with both the needles, but the head-on comparison between these two needles is lacking.~This is a prospective randomized trial comparing the biopsy specimen adequacy of 19Gauge versus 22Gauge core needles for EUS-LB.
To determine the adequacy of EUS-LB using a 19G core needle compared to a 22G core needle in a prospective randomized study.