Gastric trichobezoar: case report and literature review.

Bezoars are conglomerates of food or fiber in the alimentary tract of humans and certain animals, mainly ruminants. In adults, bezoars are most frequently encountered after a gastric operation, but in children, bezoars are associated with pica, mental retardation, and coexistent psychiatric pathologic disorders. We describe a 4-year-old girl with trichotillomania in whom a gastric trichobezoar resulted in failure to gain weight, iron deficiency anemia, and a painless epigastric mass. The causes of gastric bezoars are discussed, with emphasis on diagnostic considerations, treatment options, and preventive measures.