title: Abnormal abdominal situs: what and how should we look for?
abstract: BACKGROUND
  Prenatal management of abnormal abdominal situs is challenging since prognosis is highly variable depending on the associated malformations.
  
  
  METHODS
  The authors report on two cases of ambiguous abdominal situs. Prenatal management included specialized ultrasound examination of fetal anatomy and heart, amniocentesis for determination of the fetal karyotype and fetal abdominal MR.
  
  
  RESULTS
  In both cases, abnormal situs was associated with other abdominal anomalies such as azygous continuation, biliary atresia, bowel obstruction and polysplenia. Fetal MR was a useful additional tool in the assessment of fetal abdominal anatomy in both cases.
  
  
  CONCLUSIONS
  On the basis of these reports, the literature is reviewed and a prenatal management scheme is proposed.
authors.affiliation: Pediatric Imaging Hôpital Robert Debré, AP-HP, Paris, France.
authors.forename: Laurent J
authors.initials: LJ
authors.lastname: Salomon
authors.forename: Clarisse
authors.initials: C
authors.lastname: Baumann
authors.forename: Anne-Lise
authors.initials: AL
authors.lastname: Delezoide
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Oury
authors.forename: Danièle
authors.initials: D
authors.lastname: Pariente
authors.forename: Guy
authors.initials: G
authors.lastname: Sebag
authors.forename: Catherine
authors.initials: C
authors.lastname: Garel
mesh_terms: D000328:Adult; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D011256:Pregnancy Outcome; D011296:Prenatal Diagnosis; D012857:Situs Inversus / Q000175:diagnosis* / Q000000981:diagnostic imaging; D013154:Spleen / Q000002:abnormalities; D016216:Ultrasonography, Prenatal; D014781:Viscera / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000473:pathology