<qa>  What is the name of the modalities used to sample the lesion?Since standard endoscopy with pinch biopsies of the overlying mucosa often fails to provide an adequate sample for analysis, multiple other modalities to sample the lesion have been utilized: EUS-guided fine needle aspiration EUS-FNA, EUS-guided core needle biopsy EUS-CNB, bite-on-bite forceps biopsies, EUS-guided single-incision with needle knife SINK and endoscopic resection. 