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In trichophagia, people with trichotillomania also ingest the hair that they pull; in extreme (and rare) cases this can lead to a hair ball (trichobezoar). [10] Rapunzel syndrome is an extreme form of trichobezoar in which the "tail" of the hair ball extends into the intestines and can be fatal if misdiagnosed. [10] [18] [19] [20]
Rapunzel syndrome is an extremely rare intestinal condition in humans resulting from ingesting hair (trichophagia). [1] [2] The syndrome is named after the long-haired girl Rapunzel in the fairy tale by the Brothers Grimm. Trichophagia is sometimes associated with the hair-pulling disorder trichotillomania. [3]
Trichophagia is most closely associated with trichotillomania, the pulling out of one's own hair, and thus any symptoms of trichotillomania could be predictive of trichophagia and must be ruled out. Rarely, persons with trichophagia do not exclusively have trichotillomania and instead will eat the hair of others. [9] [5]
Trichotillomania — also known as hair-pulling disorder — is an impulse control disorder that “involves recurrent, irresistible urges to pull out hair from your scalp, eyebrows or other areas ...
NF-1 is a complex multi-system human disorder caused by the mutation of a gene on chromosome 17 that is responsible for production of a protein, called neurofibromin 1, which is needed for normal function in many human cell types. NF-1 causes tumors along the nervous system which can grow anywhere on the body.
One theory on the evolutionary and biological origins of autism traits in Homo sapiens that has gained recent attention in the 2010s and 2020s is that some genes linked to autism may have originated from early humans crossbreeding with Neanderthals, an extinct group of archaic humans (generally regarded as a distinct species, Homo ...
The scientific study of the causes of developmental disorders involves many theories. Some of the major differences between these theories involves whether environment disrupts normal development, if abnormalities are pre-determined, or if they are products of human evolutionary history which become disorders in modern environments (see evolutionary psychiatry). [5]
Animals in Translation: Using the Mysteries of Autism to Decode Animal Behavior is a 2005 book by Temple Grandin and co-written by Catherine Johnson. Animals in Translation explores the similarity between animals and people with autism, a concept that was originally touched upon in Grandin's 1995 book Thinking in Pictures: My Life with Autism.
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