Can the wet suction technique change the efficacy of endoscopic ultrasound-guided fine-needle aspiration for diagnosing autoimmune pancreatitis type 1? A prospective single-arm study

Figure 2 The wet suction technique method of endoscopic ultrasonography-guided fine-needle aspiration. A: After the stylet of the needle was withdrawn, saline solution was injected into the needle; B: A locked suction syringe with 20 mL of negative pressure was set at the edge of the needle; C: The needle was used to puncture the target lesion; D: then, the lock on the syringe was opened. Saline solution flowed into the suction syringe due to the negative pressure.