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Primary and secondary orbital teratomas.

A H Weiss1, M J Greenwald, C E Margo

  • 1Department of Ophthalmology, University of South Florida Medical Center, College of Medicine, Tampa 33612.

Journal of Pediatric Ophthalmology and Strabismus
|January 1, 1989
PubMed
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Orbital teratomas, rare tumors arising from germ cells, can cause extreme proptosis. Surgical removal is challenging, and visual outcomes are often poor due to tumor invasion and displacement.

Area of Science:

  • Ophthalmology
  • Oncology
  • Developmental Biology

Background:

  • Teratomas are neoplasms comprising tissues from two or three germ layers.
  • Orbital teratomas are rare, with potential for significant visual morbidity.
  • Understanding the embryogenesis of ectopic germ cells is crucial for orbital tumor development.

Observation:

  • Presents three cases: two primary orbital teratomas and one invasive teratoma from the maxillary sinus.
  • Clinical presentation included extreme proptosis due to globe displacement by the tumor.
  • Computed tomography revealed variegated masses with solid and cystic components.

Findings:

  • Histologic examination confirmed teratomas with elements from multiple germ layers.
  • Surgical removal was performed for all three patients.

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  • Poor visual outcomes were noted, with reasons discussed in the context of tumor characteristics.

    • Implications:

    • Orbital teratomas likely arise from misplaced germ cells during embryogenesis.
    • Early diagnosis and surgical intervention are critical for managing orbital teratomas.
    • Further research into germ cell migration may elucidate the origins of these rare tumors.