Reviewer: Elliot Weisenberg, M.D. (see Reviewers page)
Revised: 14 June 2013, last major update December 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.
- Kayexalate (sodium polystyrene sulfonate) in sorbitol is used to treat hyperkalemia
- Symptoms are from sorbitol, given orally though NG tube or as an enema, may crystallize in esophagus, stomach, or duodenum and produce endoscopic ulcers and erosions resembling carcinoma or Candida (Am J Surg Pathol 2001;25:637)
- Colonic infarction and erosions reported
- Crystals are lightly basophilic with a faint crystalline mosaic pattern, better seen with PAS/Alcian blue
- Crystals are refractile but not polarizable, luminal and adherent to intact surface epithelium or mixed with inflammatory exudate in patients with ulcer or erosion
Crystals in colon
End of Esophagus > Non-neoplastic disorders > Kayexalate damage
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