Trichobezoar

If you read Calliope, one of the stories in Sandman, you might have wondered about the trichobezoar. Here is an article from New England Journal of Medicine about a 4.5 kilogram trichobezoar found in the stomach of a woman who eats her own hair. There are also some photos, which are fairly mindboggling. This thing was just enormous and the poor woman lost 18 kilograms before she had it surgically removed.