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Related Experiment Videos

Circumvallate placenta: sonographic diagnosis

J McCarthy1, A S Thurmond, M K Jones

  • 1Department of Diagnostic Radiology, Oregon Health Sciences University, Portland, USA.

Journal of Ultrasound in Medicine : Official Journal of the American Institute of Ultrasound in Medicine
|January 1, 1995
PubMed
Summary

Circumvallate placenta, a placental abnormality, can cause uterine complications. While often associated with normal outcomes, it may increase the risk of placental issues, necessitating careful monitoring during pregnancy.

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Area of Science:

  • Obstetrics and Gynecology
  • Fetal Medicine
  • Pathology

Background:

  • Circumvallate placenta is characterized by a shelf-like structure at the placental margin.
  • This condition can be mistaken for other uterine abnormalities.
  • It is important to accurately diagnose placental variations for optimal pregnancy management.

Purpose of the Study:

  • To prospectively identify and evaluate cases of circumvallate placenta.
  • To assess the diagnostic accuracy of gross inspection versus pathologic analysis.
  • To determine the obstetric outcomes and potential complications associated with circumvallate placenta.

Main Methods:

  • Prospective identification of 12 patients with suspected circumvallate placenta based on gross examination.
  • Follow-up of 10 patients to delivery.

Related Experiment Videos

  • Pathologic analysis of three placentas, comparing gross and microscopic findings.

    • Main Results:

    • Circumvallate placenta was identified in 12 patients.
    • Gross inspection diagnosed circumvallate placenta in all three analyzed placentas, but microscopic confirmation was achieved in only two.
    • One patient experienced placental abruption and preterm cesarean delivery due to fetal distress at 27 weeks.

    Conclusions:

    • Circumvallate placenta can manifest as a uterine band, sheet, or shelf.
    • While potentially leading to normal obstetric outcomes, circumvallate placenta may predispose to serious placental complications.
    • Accurate diagnosis through combined gross and microscopic examination is crucial for risk assessment.