title: Segmental dilatation of the intestine.
abstract: OBJECTIVE
  The aim of this work is to discuss the pathogenesis of the segmental dilatation of the intestine (SDI) and to review its clinical presentation and the ways to confirm the diagnosis.
  
  
  METHODS
  Eight cases of pathologically proven SDI from 1987 to 2003 were reviewed and discussed. There were 7 newborns and a 1-year-old boy.
  
  
  RESULTS
  Our patients are 5 boys and 3 girls. In all cases, the diagnosis was not suspected before surgery. Two patients presented with a low neonatal bowel obstruction. Six patients were operated for omphalocele, which was the most frequent associated malformation. The SDI involved the ileum in all patients. The treatment consisted on a resection of the dilated segment with an end-to-end anastomosis. Histological examination demonstrated the presence of ganglion cells in all cases. The muscular layer was hypertrophied in two cases and very thin in one case. A heterotopic gastric mucosa was observed in one case. No anomalies were observed in 5 cases. The postoperative course was uneventful in 6 cases with a mean follow-up of 5 years.
  
  
  CONCLUSIONS
  Segmental intestinal dilatation is an exceptional pathology with an unknown etiology and a misleading clinical presentation. Several theories were proposed to explain this malformation; however, most authors are rather inclined to an embryological theory incriminating an extrinsic intrauterine intestinal compression. Most cases are neonatal discoveries. The clinical polymorphism and the lack of specificity of radiological investigations explain the difficulties to have a preoperative diagnosis. However, this difficulty is compensated by the favorable evolution after the resection of the dilated segment.
authors.affiliation: Department of Paediatric Surgery-Fattouma Bourguiba Hospital, 5000 Monastir-Tunisia.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Ben Brahim
authors.forename: Mohsen
authors.initials: M
authors.lastname: Belghith
authors.forename: Mongi
authors.initials: M
authors.lastname: Mekki
authors.forename: Riadh
authors.initials: R
authors.lastname: Jouini
authors.forename: Lassaad
authors.initials: L
authors.lastname: Sahnoun
authors.forename: Kaies
authors.initials: K
authors.lastname: Maazoun
authors.forename: Imed
authors.initials: I
authors.lastname: Krichene
authors.forename: Mondher
authors.initials: M
authors.lastname: Golli
authors.forename: Kamel
authors.initials: K
authors.lastname: Monastiri
authors.forename: Abdellatif
authors.initials: A
authors.lastname: Nouri
mesh_terms: D004065:Digestive System Abnormalities / Q000000981:diagnostic imaging / Q000473:pathology; D004108:Dilatation, Pathologic; D004933:Esophageal Atresia / Q000150:complications / Q000401:mortality; D005260:Female; D006554:Hernia, Umbilical / Q000150:complications / Q000401:mortality; D006627:Hirschsprung Disease / Q000150:complications / Q000601:surgery; D006801:Humans; D007082:Ileum / Q000002:abnormalities* / Q000503:physiopathology* / Q000601:surgery; D007223:Infant; D007231:Infant, Newborn; D007415:Intestinal Obstruction / Q000209:etiology* / Q000601:surgery*; D008297:Male; D011859:Radiography