Trichobezoar causing pancreatitis: first reported case of Rapunzel syndrome in a boy in North America. 
Trichobezoar is a mass of hair retained in the stomach, usually associated with trichotillomania.  Large trichobezoars may extend into the small bowel and cause small bowel obstruction or pancreatic dysfunction, a condition known as Rapunzel syndrome.  Here we report the first North American case of Rapunzel syndrome in a male patient.