Impact of endoscopic ultrasound‐guided fine‐needle biopsy on the diagnosis of subepithelial tumors: A propensity score‐matching analysis

Background and Aim Immunohistological evaluations are essential for diagnosing subepithelial tumors ( SET ). However, endoscopic ultrasound‐guided sampling using fine‐needle aspiration ( FNA ) needles is limited in its ability to procure core tissue for immunostaining. Fine‐needle biopsy ( FNB ) needles may mitigate this limitation. The present study aimed to examine the efficacy of FNB needles for procuring samples that enable the diagnosis of...