Correction to: A Rare Case of Cutaneous Gastric Adenocarcinoma With Signet Ring Cell Features.

[This corrects the article DOI: 10.14309/crj.0000000000001299.

Correction to: Isolated AL Amyloidosis of the Colon: A Rare Presentation.

[This corrects the article DOI: 10.14309/crj.0000000000001277.

Metastatic gastric adenocarcinoma to the cutaneous neck and chest wall.

This case describes an atypical cutaneous presentation of metastatic gastric carcinoma in a patient initially presenting with dysphagia and a sclerotic red plaque overlying the anterior neck and chest. Skin biopsy revealed metastatic adenocarcinoma from the upper gastrointestinal tract. Esophagogastroduodenoscopy revealed stage IV metastatic gastric adenocarcinoma.

Multifocal Follicular Lymphoma Isolated to the Gastrointestinal Tract: A Rare Finding.

Follicular lymphoma (FL) is a common form of non-Hodgkin lymphoma. Although extranodal involvement of the gastrointestinal (GI) tract is common in lymphomas, primary GI-FL confined to the GI tract is relatively rare. The disease process is typically indolent in nature and usually incidentally found.

Does endoscopic intervention prevent subsequent gastrointestinal bleeding in patients with left ventricular assist devices? A retrospective study.

Background: Patients with left ventricular assist devices (LVADs) are at increased risk for recurrent gastrointestinal bleeding (GIB) and repeat endoscopic procedures. We assessed the frequency of endoscopy for GIB in patients with LVADs and the impact of endoscopic intervention on preventing a subsequent GIB.

Aim: To evaluate for an association between endoscopic intervention and subsequent GIB.

Utility of Esophageal High-Resolution Manometry in Clinical Practice: First, Do HRM.

Esophageal high-resolution manometry (HRM) has advanced the understanding of esophageal motor function and the ability to diagnose and manage disorders of esophageal motility. In this review, we describe the indications for and the technical performance of HRM. The Chicago classification of esophageal motor function, now in its third iteration, streamlines and standardizes the nomenclature and basic interpretation of HRM data depicted as Clouse topographic plots.

Covalently bound azido groups are very specific water sensors, even in hydrogen-bonding environments.

Covalently bound azido groups are found in many commercially available biomolecular precursors and substrates, and the NNN asymmetric stretching band of these groups is a strong infrared absorber that appears in a spectral region clear of other signals. In order to evaluate comprehensively the solvatochromism of the asymmetric azido NNN stretching band for site-specific use in biomolecular contexts, infrared spectra of the model compounds 5-azido,1-pentanoic acid and 3-(p-azidophenyl),1-propanoic acid were acquired in a large variety of nonpolar, polar, and hydrogen-bond-donating solvents, as well as mixed aqueous-organic solvents. Spectra in pure solvents indicated that the aliphatic NNN stretching frequency maximum does not depend on solvent polarity, while the aromatic NNN frequency displays a weak but nonzero sensitivity to polarity.