Article Text

Download PDFPDF
Case report
Dichorionic pregnancy complicated by a twin-to-twin transfusion syndrome
  1. Maria Carlota Cavazza1,
  2. Ana Catarina Lai2,
  3. Sílvia Sousa1 and
  4. Raquel Pina2
  1. 1 Obstetrics and Gynecology, Centro Hospitalar de Leiria, Leiria, Portugal
  2. 2 Pathology, Centro Hospitalar e Universitário de Coimbra EPE, Coimbra, Portugal
  1. Correspondence to Dr Maria Carlota Cavazza; mcarlota.cavazza{at}


Twin-to-twin transfusion syndrome (TTTS) is a serious complication typical of monochorionic pregnancies. Cases in dichorionic pregnancies have been described. The authors present a case report of a presumed TTTS in a dichorionic pregnancy followed at our institution in which the patient presented to the emergency department at 31 4/7 weeks’ gestation complaining of lack of fetal movements. Both fetuses did not show any cardiac activity. On the first twin, an oligohydramnios was present and his bladder was not visualised and, on the second twin, a polyhydramnios and an augmented bladder were visualised. Pathological findings of the fetuses were compatible with a diagnosis of TTTS and placental study confirmed the presence of a dichorionic/diamniotic placenta, with superficial vessels crossing the dividing membrane.

  • pregnancy
  • obstetrics and gynaecology

Statistics from


  • Contributors MCC and ACL were responsible for the study concept and design, revision of the literature and drafting of the manuscript. SS and RP contributed to study supervision and critical revision of the manuscript.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Obtained.

  • Provenance and peer review Not commissioned; externally peer reviewed.

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.