title: Prenatal diagnosis of intra-abdominal cystic lesions by fetal ultrasonography: diagnostic agreement between prenatal and postnatal diagnosis.
abstract: OBJECTIVE
  The aim of this study was to assess the diagnostic agreement between the prenatal diagnosis of intra-abdominal cystic lesions made by ultrasound examination and the postnatal diagnosis.
  
  
  METHODS
  We reviewed all consecutive cases referred for an anechoic abdominal cyst from 2009 to 2013. Prenatal ultrasound diagnosis was compared with postnatal diagnosis. Prenatal diagnosis was defined as 'correct' if a specific prenatal diagnosis or one of the possible diagnoses was confirmed postnatally, as 'not confirmed' if the postnatal examination revealed no abnormalities and as 'incorrect' if the postnatal diagnosis was different from those suggested prenatally.
  
  
  RESULTS
  Seventy-three cases were included, and prenatal diagnoses were made at a median gestational age of 27 weeks (range: 13-36). Correct diagnoses were made in 66 cases (90.4%), including four in which the lesion resolved spontaneously in utero; two diagnoses were 'not confirmed' postnatally, and one was incorrect (a prenatal diagnosis of intestinal duplication was in fact an anorectal malformation). Postnatal diagnosis was not achieved in four cases: None of them required surgery, and clinical follow-up was favorable. The abdominal cysts were isolated in 52 cases (71%) and associated with other anomalies in 21 cases (29%). Aneuploidies were diagnosed in three cases (all trisomy 21). Eight cases underwent termination of pregnancy; there were no fetal deaths and one neonatal death. Postnatal surgery was performed in 30 out of 65 liveborn infants (46.1%).
  
  
  CONCLUSIONS
  Overall diagnostic agreement between prenatal and postnatal diagnosis of fetal intra-abdominal cystic lesions is high.
authors.affiliation: Department of Obstetrics and Fetal Medicine, Hôpital Necker Enfants Malades, Université René Descartes, Paris, France.
authors.forename: Giulia
authors.identifier: http://orcid.org/0000-0001-8748-3153
authors.initials: G
authors.lastname: Marchitelli
authors.affiliation: Department of Obstetrics and Fetal Medicine, Hôpital Necker Enfants Malades, Université René Descartes, Paris, France.
authors.forename: Julien
authors.initials: J
authors.lastname: Stirnemann
authors.affiliation: Department of Obstetrics and Fetal Medicine, Hôpital Necker Enfants Malades, Université René Descartes, Paris, France.
authors.forename: Marta Maddalena
authors.initials: MM
authors.lastname: Acanfora
authors.affiliation: Pediatric Surgery, Hôpital Necker Enfants Malades, Université René Descartes, Paris, France.
authors.forename: Veronique
authors.initials: V
authors.lastname: Rousseau
authors.affiliation: Department of Obstetrics and Fetal Medicine, Hôpital Necker Enfants Malades, Université René Descartes, Paris, France.
authors.forename: Laurent J
authors.initials: LJ
authors.lastname: Salomon
authors.affiliation: Department of Obstetrics and Fetal Medicine, Hôpital Necker Enfants Malades, Université René Descartes, Paris, France.
authors.forename: Yves
authors.initials: Y
authors.lastname: Ville
mesh_terms: D000005:Abdomen; D000328:Adult; D003560:Cysts / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011247:Pregnancy; D012189:Retrospective Studies; D016216:Ultrasonography, Prenatal