DescriptionAspiration of a bile acid sequestrant - Lung - 48592819986.jpg
English: The appearance of these foreign bodies is consistent with one of the bile acid sequestrants (BAS). BAS are one of several classes of ion exchange resins that are administered orally. BAS are used to treat diarrhea. BAS include colesevelam, colestipol and cholestyramine which are marketed under a variety of trade names. They typically appear bright orange on H&E but their color is variable. An excellent free publication on medication resins and their morphology is : Gonzalez RS et al. Arch Pathol Lab Med 2017;141:1276-1282.
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