title: [Fetal examination of first trimester abortions].
abstract: BACKGROUND
  Rather few papers are about first trimesters pathology. The reason of this roots in the technical difficulties. The first trimesters pathology can not be separated from prenatal diagnostics.
  
  
  OBJECTIVE
  The authors summarized the molecular basis of embryology, malformations, and published cases that had been diagnosed prenatally.
  
  
  METHODS
  In the I. Department of Obstetrics and Gynecology, Semmelweis University in Budapest between 1995. and 2000. altogether sixty embryos 70 gms or smaller were examined.
  
  
  RESULTS
  Malformations included neural tube defects, disorders of twinning, body stalk defect, chromosome aberrations, hydrops, omphalocele and gastroschisis.
  
  
  CONCLUSIONS
  Examination of early embryos may discover many results on the fields of prenatal diagnosis and the pathomechanism of developmental abnormalities.
authors.affiliation: Semmelweis Egyetem Altalános Orvostudományi Kar, I. Sz. Szülészeti és Nógyógyászati Klinika, Budapest.
authors.forename: Tamás
authors.initials: T
authors.lastname: Marton
authors.forename: Beáta
authors.initials: B
authors.lastname: Hargitai
authors.forename: Tamás
authors.initials: T
authors.lastname: Böze
authors.forename: András
authors.initials: A
authors.lastname: Tankó
authors.forename: Zsolt
authors.initials: Z
authors.lastname: Csapó
authors.forename: Béla
authors.initials: B
authors.lastname: Szende
authors.forename: Zoltán
authors.initials: Z
authors.lastname: Papp
mesh_terms: D000022:Abortion, Spontaneous / Q000209:etiology*; D000818:Animals; D002869:Chromosome Aberrations; D002971:Cleft Lip / Q000235:genetics / Q000473:pathology; D002972:Cleft Palate / Q000235:genetics / Q000473:pathology; D005260:Female; D005315:Fetal Diseases / Q000000981:diagnostic imaging / Q000235:genetics* / Q000473:pathology*; D006554:Hernia, Umbilical / Q000235:genetics / Q000473:pathology; D006801:Humans; D015160:Hydrops Fetalis / Q000235:genetics / Q000473:pathology; D009436:Neural Tube Defects / Q000235:genetics / Q000473:pathology; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D016216:Ultrasonography, Prenatal