Published online Oct 14, 2017. doi: 10.3748/wjg.v23.i38.6952
Peer-review started: August 13, 2017
First decision: August 30, 2017
Revised: September 11, 2017
Accepted: September 20, 2017
Article in press: September 19, 2017
Published online: October 14, 2017
Core tip: The initial evaluation fails to detect the cause of recurrent acute pancreatitis (RAP) in 10%-30% of patients, whose condition is classified as idiopathic RAP. Idiopathic acute pancreatitis (IAP) is a diagnostic challenge for gastroenterologists. In view of high diagnostic accuracy and safety of endoscopic ultrasound (EUS), a EUS based management strategy appears to be a reasonable approach for evaluation of patients with a single/recurrent idiopathic pancreatitis. The most common diagnoses by EUS in IAP is biliary tract disease. This review aims to discuss the role of EUS in the clinical management and diagnosis of patients with IAP.