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Case Reports
. 2015;34(6):413-21.
doi: 10.3109/15513815.2015.1075633. Epub 2015 Sep 11.

Pseudomonoamniotic Pregnancy: Case Report and Review of Etiologic Considerations

Avinash S Patil  1 , Jessica Martin  2 , Katharine Tsukahara  3 , Anja Skljarevski  3 , Katherine Miller  3 , Rachel Towns  2 , Frank P Schubert  1
Affiliations
Free article
Case Reports

Pseudomonoamniotic Pregnancy: Case Report and Review of Etiologic Considerations

Avinash S Patil et al. Fetal Pediatr Pathol. 2015.
Free article

Abstract

Pseudomonoamniotic gestations are increasingly recognized through sonographic surveillance of monochorionic twins, though etiologic factors remain undefined. We present a case of spontaneous pseudomonoamniotic twins and propose umbilical cord insertion proximity as a sonographic marker. Systematic review of the literature was performed and additional cases with similar findings were noted. Approximately 75% of reported cases (28/37) were deemed spontaneous and several included short inter-cord distances. Shunting of blood away from the membranes in the region between the cord insertions may be responsible for membrane rupture. Further investigation is needed into short inter-cord distance as a marker for monochorionic twins at risk to become a pseudomonoamniotic gestation.

Keywords: monochorionic; pseudomonoamniotic; twins.

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