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[Antenatal prognostic factors in sacrococcygeal teratomas]

P Veschambre1, R Wartanian, B Lebouvier

  • 1C.H.U. d'Angers.

Revue Francaise De Gynecologie Et D'Obstetrique
|May 1, 1993
PubMed

The authors report 5 cases of sacrococcygeal teratoma, 4 of which were diagnosed by routine ultrasonography. In view of the poor prognosis of sacrococcygeal teratomas discovered antenatally, certain ultrasonographic severity criteria have been defined. The following are felt to be relevant in this light of present knowledge: a tumour size greater than the biparietal diameter of the fetus at the time of diagnosis; rapid tumour growth. This latter parameter summarises in itself the criteria taken into account in the past: placentomegaly, hydramnios, anasarca. Colour coded Doppler should make it possible in the future to identify a group which might benefit from treatment in utero.

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Teratogenicity

The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...