Bezoars are accumulations of indigestible contents within the gastrointestinal tract .
There are several types depending on the predominant components:
- diospyrobezoar is a subtype of phytobezoar secondary to the consumption of unripe persimmons
- previous gastric surgery
- psychiatric illness
They are known to cause small bowel obstruction and sometimes CT may demonstrate the bezoar as a mass in the obstructed segment of bowel. The bezoar may be outlined by fluid in the proximally dilated small bowel, and the mass may be mottled owing to air trapped within it.
History and etymology
Premodern medicine considered bezoars a special kind of stone with antidote properties. Until the 18 century a gold mounted bezoar was included in the crown jewels. Some ancient pharmacopoeias list 'unicorn horns' as an acceptable alternative if a bezoar is not available. In the late 15 century, Eastern porcupine bezoars were considered especially valuable .
- in small bowel loops consider small bowel feces sign
- Ileus durch Bezoar
- bezoar in the stomach
- Trichobezoar im Duodenum
- Trichobezoar in Magen und Duodenum