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Comparison of endoscopic ultrasonography‐guided fine‐needle aspiration cytology results with and without the stylet in 3364 cases

Endoscopic ultrasound‐guided fine‐needle aspiration cytology (EUS‐FNA) is traditionally carried out with the stylet, as it is believed to prevent blockage or contamination of the needle by tissue coming from the gastrointestinal wall. However, this recommendation has not been demonstrated on an empirical basis. The aim of the present study was to compare the yield of EUS‐FNA in a very large series of patients with (S+) and without (S–) the stylet.