title: Autistic enterocolitis; is it a histopathological entity?
abstract: OBJECTIVE
  To review the literature on the histopathological diagnosis of the condition termed 'autistic enterocolitis'.
  
  
  RESULTS
  We have reviewed all published works where mucosal biopsy specimens from autistic children have been examined histopathologically. Abstracts were excluded. Our review of the published works, nearly all from a single centre, identifies major inconsistencies between studies, lack of appropriate controls and misinterpretation of normal findings as pathology. Ileal lymphoid hyperplasia may be more prevalent in children with regressive autism but is also seen in children with food allergies and severe constipation, the latter being an extremely common finding in autistic children.
  
  
  CONCLUSIONS
  The histopathological diagnosis of autistic enterocolitis should be treated with caution until a proper study with appropriate methodology and controls is undertaken.
authors.affiliation: Institute of Cell and Molecular Science and Health Sciences Education, Bart's and the London Queen Mary School of Medicine and Dentistry, London, UK. t.t.macdonald@qmul.ac.uk
authors.forename: T T
authors.initials: TT
authors.lastname: MacDonald
authors.forename: P
authors.initials: P
authors.lastname: Domizio
mesh_terms: D001321:Autistic Disorder / Q000150:complications / Q000473:pathology*; D001706:Biopsy; D002648:Child; D004760:Enterocolitis / Q000150:complications / Q000473:pathology*; D019317:Evidence-Based Medicine; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology