Pathology
Images
Fetopathology and developmental pathology of the embryo and fetus
Marta Ježová, Josef Feit et al.
×
+ Introduction
+ Support
+ Atlas of fetal pathology
Pathology of higher multiple gestations: triplets
Clinical signs
  • cca 1 : 10 000 of spontaneous conceptions
  • the number has markedly increased with techniques of assisted reproduction
  • triplets may be trizygotic, dizygotic or monozygotic, and so the forms of placentation vary:
    • two fetuses from triplets are commonly monozygotic twins
    • monozygotic triplets are the least frequent, this is explained as resorbtion of the fourth embryo or a delay , asynchronism, in one of the cell divisions, providing that binary divisions stands as the principal rule
    • triplet placenta is described using the numbers of chorions and amnions, for example trichorionic triamnionic, dichorionic triamnionic
  • clinical problems are the same as for twins
  • triplets are always born premature

Trichorial triamnial triplets (73346)

Pictures

Triplet placenta monochorionic triamnionic and histology of the septum: Placenta, triplets, Macro, autopsy (72668) Amniotic membranes, septum, triplets, HE 40x (72651)

Triplet placenta triamnionic trichorial: Triplets, trichorial triamnial, Macro, autopsy (73345)

Triplets, trichorial triamnial: Triplets, trichorial triamnial, Macro, autopsy (73346)