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Related Experiment Videos

Cyclopia: a radiological and anatomical craniofacial post mortem study.

C Cannistrá1, P Barbet, P Parisi

  • 1Department of Paediatric Pathology, Hĵpital Saint Vincent de Paul, University Rene Descartes, Paris, France. cannistra@abramo.it

Journal of Cranio-Maxillo-Facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery
|July 24, 2001
PubMed
Summary

Cyclopia, a rare fetal malformation, involves a single eye and proboscis, often with severe brain defects. This condition, incompatible with life, offers insights into facial development, particularly trigeminal nerve importance.

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Area of Science:

  • Developmental biology
  • Teratology
  • Human embryology

Background:

  • Cyclopia is a severe congenital malformation characterized by a single median eye and a proboscis.
  • It is associated with significant brain malformations and is incompatible with life.
  • The incidence is approximately 1.05 per 100,000 births, including stillbirths.

Purpose of the Study:

  • To conduct an anatomical and histological study of the fronto-orbito-maxillary region in a fetus with cyclopia.
  • To investigate the role of trigeminal nerves in facial development.
  • To utilize cyclopia as a model for understanding normal facial embryogenesis.

Main Methods:

  • Three-dimensional (3-D) computed tomography (CT) reconstruction of the fronto-orbito-maxillary region.

Related Experiment Videos

  • Anatomical examination of the fetal specimen.
  • Histological analysis of facial structures.

    • Main Results:

    • Observations suggest the critical role of trigeminal nerve integrity for normal facial structure development.
    • Facial fusion occurs in the midline even in the absence of central prosencephalic structures.
    • The study provides detailed anatomical and histological data of the affected region.

    Conclusions:

    • The trigeminal nerve plays a crucial role in the development of facial embryological structures.
    • Cyclopia, despite its severity, serves as a valuable model for studying normal facial development processes.
    • Understanding the mechanisms in cyclopia can shed light on the etiology of other craniofacial anomalies.