Causes bleeding, diarrhea or abdominal pain
Endoscopy: small erosions in different parts of colon
Treatment: discontinuation of NSAIDs (Z Gastroenterol 2000;38:957)
Micro: usually mixed inflammatory infiltrate, may also be predominantly neutrophilic or lymphocytic; often erosions, crypt architectural disarray; no granulomas
Micro images: ulcer post-NSAID therapy; erosion and neutrophils
DD: Crohn’s colitis, focal active colitis, ischemic colitis
References: AJCP 1998;110:622, Pathologe 2006;27:65, Adv Anat Pathol 1999;6:213
