Fetopathology and developmental pathology of the embryo and fetus: Pathology of higher multiple gestations: triplets

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+ Atlas of fetal pathology

+ Congenital malformations

+ Physiological developement of an embryo and fetus, growth and changes of the external shape

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+ Pathology of higher multiple gestations: triplets

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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)