Published online Oct 21, 2014. doi: 10.3748/wjg.v20.i39.14292
Revised: June 25, 2014
Accepted: July 11, 2014
Published online: October 21, 2014
Core tip: All aspects of endoscopic ultrasound tissue acquisition have been well discussed in recent studies. In addition to discussions about important factors that impact tissue acquisition, in this article we have highlighted the methods of ancillary testing needed to satisfy the growing demands of precision medicine standards. Adequate tissue samples and appropriate ancillary testing enable comprehensive diagnosis, and answer the main clinical questions, thus enabling targeted therapy.