Usefulness of EUS-FNA with contrast-enhanced harmonic imaging for diagnosis of gallbladder tumor

Dear Editor, It is usually difficult to obtain pathological evidence from gallbladder tumors before surgery and chemotherapy; however, histological diagnosis of gallbladder tumors is necessary for determining the treatment policy.[1] In recent years, EUS-FNA is reportedly useful to obtain a tissue for the diagnosis of gallbladder mass lesions. However, EUS-FNA for gallbladder tumor has a risk of bile leak and needle-track seeding by puncturing...