Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2009 Oct;38(5):302-9.
doi: 10.1111/j.0047-2565.2009.00355.x.

Trichobezoars in baboons

Diana C P Mejido  1 , Edward J Dick Jr, Priscilla C Williams, R M Sharp, Marcia C R Andrade, C D DiCarlo, Gene B Hubbard
Affiliations

Trichobezoars in baboons

Diana C P Mejido et al. J Med Primatol. 2009 Oct.

Abstract

Background: There is little information available concerning trichobezoars in the non-human primate literature.

Methods: We evaluated 118 cases of trichobezoar in baboons over a 29-year period at the Southwest National Primate Research Center.

Results: The anatomic locations affected in decreasing order were the stomach, small intestine, cecum, esophagus and colon. The most common clinical history was weight loss. The most frequent associated pathology included gastrointestinal inflammation and ulceration, emaciation, peritonitis, intussusception, pneumonia, and aspiration. Trichobezoars were the cause of death in nine baboons and the reason for euthanasia in 12. Females were 2.14 times more likely than males to be affected. The greater the percentage of group housing time, the more likely the baboon is to develop trichobezoars.

Conclusions: The baboon may present a useful model to evaluate the etiology, genetic predisposition, physiopathology, neurobiology, and treatment response of trichobezoars.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Gross appearance of trichobezoars in the baboon. A. An obstructive trichobezoar occluding the lumen of the esophagus. B. A mature, compact, trichobezoar completely filling the stomach. C. A less compact trichobezoar partially filling and occluding the stomach with extension into the duodenum. D. A trichobezoar partially filling and occluding the small intestine.
Figure 1
Figure 1
Gross appearance of trichobezoars in the baboon. A. An obstructive trichobezoar occluding the lumen of the esophagus. B. A mature, compact, trichobezoar completely filling the stomach. C. A less compact trichobezoar partially filling and occluding the stomach with extension into the duodenum. D. A trichobezoar partially filling and occluding the small intestine.
Figure 1
Figure 1
Gross appearance of trichobezoars in the baboon. A. An obstructive trichobezoar occluding the lumen of the esophagus. B. A mature, compact, trichobezoar completely filling the stomach. C. A less compact trichobezoar partially filling and occluding the stomach with extension into the duodenum. D. A trichobezoar partially filling and occluding the small intestine.
Figure 1
Figure 1
Gross appearance of trichobezoars in the baboon. A. An obstructive trichobezoar occluding the lumen of the esophagus. B. A mature, compact, trichobezoar completely filling the stomach. C. A less compact trichobezoar partially filling and occluding the stomach with extension into the duodenum. D. A trichobezoar partially filling and occluding the small intestine.
See this image and copyright information in PMC

References

    1. Cary ME, Chavez MS, Wolf RF, Kosanke SD, White GL. Jejunal intussusception and small bowel transmural infarction in a baboon (Papio hamadryas anubis) Laboratory Animal Science. 2006;45:41–44. - PubMed
    1. Garner JP, Weisker SM, Dufour B, Mench JA. Barbering (fur and whisker trimming) by laboratory mice as a model of human trichotillomania and obsessive-compulsive spectrum disorders. Comparative Medicine. 2004;54:216–224. - PubMed
    1. Gillin AG, Phippard AF, Thompson JF, Harewood WJ, Waugh RC, Horvath JS. Gastric haemorrhage and perforation caused by a trichobezoar in a baboon (Papio hamadryas) Lab Anim. 1990;24:180–182. - PubMed
    1. Gozalo AS, Montoya E, Nolan TE. Trichobezoars in two saddleback tamarins (Saguinus fuscicollis) J Med Primatol. 1990;19:151–153. - PubMed
    1. Graber J, Arndt WB. Trichotillomania. Compr Psychiatry. 1993;34:340–346. - PubMed

Publication types