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Upper face morphology of second-trimester fetuses

P P Gill1, J VanHook, J FitzSimmons

  • 1Department of Obstetrics and Gynecology, University of Washington Medical Center, Seattle 98195.

Early Human Development
|May 1, 1994
PubMed
Summary
This summary is machine-generated.

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This study details ear auricle and palpebral fissure morphology in second-trimester fetuses. These findings aid in identifying upper face abnormalities in fetal development.

Area of Science:

  • Embryology and Human Anatomy
  • Developmental Biology
  • Medical Genetics

Background:

  • The ear auricle and palpebral fissures are key features of upper facial morphology.
  • Understanding normal development is crucial for identifying abnormalities.
  • Second-trimester fetuses provide a critical window for observing developmental milestones.

Purpose of the Study:

  • To characterize the morphology of the ear auricle and palpebral fissures in normal second-trimester human fetuses.
  • To establish criteria for identifying upper face dysmorphism in formalin-preserved specimens.
  • To provide insights into abnormal human development influenced by genetic and environmental factors.

Main Methods:

  • Morphological analysis of the ear auricle in 106 second-trimester abortuses.

Related Experiment Videos

  • Assessment of palpebral fissure characteristics in 88 second-trimester abortuses.
  • Comprehensive autopsy to confirm normality of external and internal morphology.

    • Main Results:

    • Detailed data on ear auricle morphology and palpebral fissure characteristics were collected.
    • Established baseline measurements for normal fetal upper face development.
    • Identified key morphological features for dysmorphism assessment.

    Conclusions:

    • The collected data provide essential criteria for diagnosing upper face dysmorphism in second-trimester fetuses.
    • Recognition of dysmorphism aids in understanding the impact of genetic and environmental factors on development.
    • This research supports improved diagnostic capabilities in prenatal and post-mortem examinations.