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World J Gastroenterol. 2017 Oct 14;23(38):6952-6961. doi: 10.3748/wjg.v23.i38.6952.

Role of endoscopic ultrasound in idiopathic pancreatitis.

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Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut 25001, India.
Department of Gastroenterology and Hepatology, The Brooklyn Hospital Center, Clinical Affliate of The Mount Sinai Hospital, Brooklyn, NY 11201, United States.
Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut 25001, India.


Recurrent acute pancreatitis (RAP) is defined based on the occurrence of two or more episodes of acute pancreatitis. The initial evaluation fails to detect the cause of RAP in 10%-30% of patients, whose condition is classified as idiopathic RAP (IRAP). Idiopathic acute pancreatitis (IAP) is a diagnostic challenge for gastroenterologists. In view of associated morbidity and mortality, it is important to determine the aetiology of pancreatitis to provide early treatment and prevent recurrence. Endoscopic ultrasound (EUS) is an investigation of choice for imaging of pancreas and biliary tract. In view of high diagnostic accuracy and safety of 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. The present review aims to discuss the role of EUS in the clinical management and diagnosis of patients with IAP. It elaborates the diagnostic approach to IAP in relation to EUS and other different modalities. Controversial issues in IAP like when to perform EUS, whether to perform after first episode or recurrent episodes, comparison among different investigations and the latest evidence significance are detailed.


Ascariasis; Biliary sludge; CT; Common bile duct stones; ERCP; Endoscopic ultrasound; Gallstones; Idiopathic recurrent pancreatitis; MRCP; Microlithiasis; Pancreatic cancer; Pancreatitis; USG

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