A bezoar (/ˈbizɔːr/BEE-zor) is a mass often found trapped in the gastrointestinal system,[2] though it can occur in other locations.[3][4] A pseudobezoar is an indigestible object introduced intentionally into the digestive system.[5]
There are several varieties of bezoar, some of which have inorganic constituents and others organic. The term has both modern (medical, scientific) and traditional usage.
^Bala M, Appelbaum L, Almogy G (November 2008). "Unexpected cause of large bowel obstruction: colonic bezoar". Isr. Med. Assoc. J. 10 (11): 829–30. PMID19070299.