In utero early suspicion of superfetation by ultrasound examination: a case report.

Soudre, G; Guettier, X; Marpeau, L; Larue, L; Jault, T; Barrat, J · Ultrasound Obstet Gynecol · 1992

case_report · Level V

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Abstract

We report the case of a dichorionic and diamniotic pregnancy with the unique feature of an early ultrasound diagnosis of a 4-week size difference, which persisted throughout pregnancy. At birth, the twins had a 1-month difference in physical and neurological maturity. We believe that only the phenomenon of a superfetation can explain this difference. We report the cases found in the literature.