Cause or effect? Undetectable vitamin D in a patient with Crohn's disease.

Crohn's disease has been described as the "great mimicker" with a wide array of presentations. We describe a case of a teenager who presented with tetany and undetectable vitamin D as initial presentation of Crohn's disease. There are reports of adults in tetany due to electrolyte derangements in chronic gastrointestinal diseases secondary to malabsorption.

Metal versus plastic stents in the management of benign biliary strictures: systematic review and meta-analysis of randomized controlled trials.

Benign biliary strictures (BBS) are usually treated with endoscopic retrograde cholangiopancreatography (ERCP) with the placement of multiple plastic stents (MPS) or a covered self-expandable metal stent (CSEMS). In this meta-analysis, we compared the efficacy and safety of MPS and CSEMS in the management of BBS. We reviewed several databases from inception to 28 April 2021 to identify RCTs that compared MPS with CSEMS in the management of BBS.

Outcomes of Endoscopic Submucosal Dissection for Treatment of Superficial Pharyngeal Cancers: Systematic Review and Meta-Analysis.

Background And Aims: Studies evaluating the role of endoscopic submucosal dissection (ESD) in the management of superficial pharyngeal cancers have reported promising results. This meta-analysis evaluates the efficacy and safety of ESD in the management of superficial pharyngeal cancers.

Methods: We reviewed several databases from inception to September 03, 2020, to identify studies evaluating the efficacy and safety of ESD in the management of superficial pharyngeal cancers.