Use of Samples From Endoscopic Ultrasound-Guided 19-Gauge Fine-Needle Aspiration in Diagnosis of Autoimmune Pancreatitis

EUS-FNA, with a 19-gauge needle, is a safe and reliable procedure for obtaining pancreatic samples for the histologic analysis of AIP. Although it does not have a high diagnostic yield, it might be useful in patients without typical features of AIP because it would allow patients to avoid surgery.