Background & Aims: The burden and determinants of microscopic colitis (MC) in North America
are inadequately defined. We determined the incidence rate of and risk factors for MC in …

Acquired diverticula of the vermiform appendix are rare and arise as a result of different
pathogenetic mechanisms. One of the etiologies includes proximally located, often unsuspected …

Context.—Solitary rectal ulcer syndrome (SRUS) is associated with erythema and ulceration
of the rectal wall. Serrated lesions of the colon are divided into conventional hyperplastic …

Background. Microscopic colitis (MC) has not been recognized as a complication of transplantation
because patients are on immunosuppressant medications. The objective of this work …

To the Editor: We read with great interest the recently published article by Xiao et al1
describing the unique pattern of gastric mucosal injury occurring in the context of doxycycline …

Microscopic colitis (MC) is an inflammatory condition of the colon distinct from Crohn disease
or ulcerative colitis that can cause chronic diarrhea as well as cramping and bloating. …

DisCussion Primary pancreatic lymphomas (PPLs) are rare, accounting for less than 1.5%
of primary pancreatic malignant neoplasms (1). Secondary pancreatic involvement of …

Immunocytochemistry as a routine ancillary test remains a distant reality for most diagnostic
laboratories. Notable barriers to the mass deployment of ICC include: the large variety of …

A 68-year-old woman underwent polypectomy of 2 right-sided colonic polyps identified by
screening colonoscopy. Histologic examination of both polyps showed features of sessile …

Forensic pathologists have historically found several characteristics of the entrance wound
invaluable in determining range of fire in gunshot fatalities. Among these characteristics are …