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| Definition: | A ball of swallowed foreign material (usually hair or fiber) that collects in the stomach and fails to pass through the intestines.
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| Alternative Names: | Trichobezoar; Hairball
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| Causes, incidence, and risk factors: | Chewing on or eating hair or fuzzy materials (or indigestible materials such as plastic bags) can lead to the formation of a bezoar. The incidence is very low and the risk is greater among mentally retarded or emotionally disturbed children. Generally bezoars are seen in females (approximately 90%) aged 10 to 19.
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Review Date: 12/10/2001
Reviewed By: Jonathan Fanaroff, M.D., Department of Pediatrics, Rainbow Babies and Children's Hospital, Case Western Reserve University, Cleveland, OH. Review provided by VeriMed Healthcare Network.
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