No Microscope Needed: A Macroscopic Presentation of Collagenous Colitis.

Microscopic colitis (MC) is a common cause of chronic secretory diarrhea with variable etiologies, including nonsteroidal anti-inflammatory drugs. As its name implies, the diagnosis requires consistent histopathologic findings that typically accompany normal-appearing mucosa. However, accumulating evidence suggests that the presence of distinct endoscopic features is associated with MC.

Adverse Events and Reinterventions Following Pancreatic Endoscopic Sphincterotomy.

Objectives: Pancreatic endoscopic sphincterotomy (PES) is an independent risk factor for short- and long-term adverse events (AEs) of endoscopic retrograde cholangiopancreatography. We sought to measure PES-specific AEs and trends in the use of PES.

Methods: This was a retrospective cohort of consecutive patients who underwent first-time PES between June 2008 and June 2015.

Cap-assisted retrograde single-balloon enteroscopy results in high terminal ileal intubation rate.

Background And Study Aims: Retrograde single-balloon enteroscopy (RSBE) facilitates evaluation of the distal small bowel and provision of appropriate therapy when necessary. Intubation of the terminal ileum (TI) is a major rate-limiting step, with failure rates as high as 30 %. Cap-assisted endoscopy has proven beneficial in other aspects of endoscopy.

Elevated gray and white matter densities in cocaine abstainers compared to current users.

Rationale: Numerous neuroimaging studies have demonstrated lower neural tissue density in chronic cocaine users, which may be linked to cognitive dysfunction.

Objectives: The goal of this study was to determine whether neural tissue density was also impaired in individuals abstinent from cocaine and whether any observed changes were associated with cognitive performance.

Methods: A total of 73 participants were included: 24 active cocaine users, 24 abstainers (abstinent for at least 1 month), and 25 nondrug-abusing controls rigorously matched for age, gender, and IQ.

Glut1 and Glut3 expression in lymphoma and their association with tumor intensity on 18F-fluorodeoxyglucose positron emission tomography.

Objective: To evaluate the expression of glucose transporters (Gluts) 1 and 3 in Hodgkin and nonHodgkin lymphoma and to assess the association between their expression and the tumor intensity on 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET).

Methods: All 31 lymphoma patients in whom the histologic diagnosis was made and who had also undergone a prechemotherapy PET scan at our institution between June 2001 and December 2005 were included in this retrospective study. The percentage of tumor cells in the various lymphoma subtypes was estimated by comparison of hematoxylin and eosin stain with a lineage-associated immunohistochemical stain on the same block of tissue.