Diagnostic yield of endoscopic ultrasound-guided tissue acquisition in autoimmune pancreatitis: a systematic review and meta-analysis
There is limited evidence on the diagnostic performance of endoscopic ultrasound (EUS)-guided tissue acquisition in autoimmune pancreatitis (AIP) 15 studies with 631 patients were included, of which four were prospective series and one randomized trial. Overall diagnostic accuracy of EUS tissue acquisition was 54.7% (95% confidence interval, 40.9%-68.4%) with a clear superiority of FNB over FNA. FNB provided level 1 of histological diagnosis in 44.2% of cases (30.8%-57.5%) as compared to 21.9% w
