title: Antenatal diagnostic aspects of unilateral multicystic kidney dysplasia--sensitivity, specificity, predictive values, differential diagnoses, associated malformations and consequences.
abstract: OBJECTIVE
  Unilateral multicystic kidney dysplasia (MCKD) is the second most common urinary tract abnormality diagnosed antenatally. Whilst an isolated unilateral MCKD has a good prognosis, a poor outcome must be expected when MCKD is associated with other complex abnormalities.
  
  
  METHODS
  Out of 11,176 cases, 693 fetuses were suspected of having urinary tract abnormalities. Urological findings were confirmed in 548 of them. Unilateral cystic kidney was diagnosed prenatally in 85 cases.
  
  
  RESULTS
  The study results in a total of 107 cases with proven MCKD. Eighty-five pregnancies with a prenatal diagnosis of MCKD were analysed. The antenatal diagnosis of MCKD was confirmed in 56 cases. Fifty-one children were found to have unilateral MCKD where this had not been explicitly suspected from antenatal scanning.
  
  
  CONCLUSIONS
  Unilateral MCKD is a malformation with an excellent prognosis for child survival and global renal function if encountered in isolation. However, our analysis of live infants and autopsy cases demonstrates a high proportion of severe associated malformations of the urinary tract and other organ systems.
authors.affiliation: Klinik und Poliklinik für Kinderchirurgie, Medizinischen Fakultät, Berlin, Germany. felieckholdt@gmx.de
authors.forename: Felicitas
authors.initials: F
authors.lastname: Eckoldt
authors.forename: R
authors.initials: R
authors.lastname: Woderich
authors.forename: R D
authors.initials: RD
authors.lastname: Smith
authors.forename: K-S
authors.initials: KS
authors.lastname: Heling
mesh_terms: D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D021782:Multicystic Dysplastic Kidney / Q000175:diagnosis* / Q000000981:diagnostic imaging; D011237:Predictive Value of Tests; D011247:Pregnancy; D011296:Prenatal Diagnosis / Q000379:methods / Q000706:statistics & numerical data; D012189:Retrospective Studies; D012680:Sensitivity and Specificity; D014463:Ultrasonography