IgG4-related pancreatobiliary diseases could be associated with onset of pancreatobiliary cancer: A multicenter cohort study.

Background: The risk and prognosis of pancreatobiliary cancer and in patients with autoimmune pancreatitis (AIP) and IgG4-related sclerosing cholangitis (IgG4-SC) remain unclear. Therefore, we retrospectively investigated the risk of pancreatobiliary cancer and prognosis in patients with AIP and IgG4-SC.

Methods: Patients with AIP and IgG4-SC at seven centers between 1998 and 2022 were investigated.

Learning Curve of Endoscopic Retrograde Cholangiopancreatography Using Single-Balloon Enteroscopy.

Background: Endoscopic retrograde cholangiopancreatography (ERCP) in patients with surgically altered anatomy is technically difficult. Extensive training is required to develop the ability to perform this procedure.

Aims: To investigate the learning curve of single-balloon-assisted enteroscopy ERCP (SBE-ERCP).

IgG4-related sclerosing cholangitis may be a risk factor for cancer.

Background/purpose: The relationship between autoimmune pancreatitis (AIP) and malignancy has been reported. However, the potential risk for cancer in patients with immunoglobulin 4 (IgG4)-related sclerosing cholangitis (IgG4-SC) is unclear. The present study aimed to evaluate the incidence of cancer in IgG4-SC patients.

Percent reduction of the ulcer size at 4 weeks is a predictor of the complete healing of endoscopic submucosal dissection-induced gastric ulcers.

Background And Study Aims: Endoscopic submucosal dissection (ESD) is widely used as a treatment modality for gastric mucosal neoplasia. While proton pump inhibitors (PPIs) have been used for the control of artificial ulcers created by ESD (ESD-ulcers), complete healing of the ulcers is not always achieved in all the cases. The purpose of this study was to identify the clinical factors that are predictive of refractory ESD-ulcers.