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Ocular choristomas.

A M Mansour1, J C Barber, R D Reinecke

  • 1Department of Ophthalmology, University of Texas Medical Branch, Galveston.

Survey of Ophthalmology
|March 1, 1989
PubMed
Summary
This summary is machine-generated.

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Choristomas are congenital tumors of normal tissue in abnormal locations, most commonly affecting children's eyes and orbits. Surgical intervention may be necessary for vision, cosmetic, or growth concerns.

Area of Science:

  • Ophthalmology
  • Pediatric Oncology
  • Pathology

Background:

  • Choristomas are congenital lesions characterized by normal tissue found in an abnormal location.
  • They represent the most frequent epibulbar and orbital tumors observed in pediatric patients.
  • Epibulbar choristomas manifest in the cornea, limbus, or subconjunctival space, with variable presentations from small, flat lesions to large masses.

Purpose of the Study:

  • To summarize the key characteristics of choristomas.
  • To highlight their common locations and associations.
  • To discuss indications for surgical management.

Main Methods:

  • Review of existing literature on choristomas.
  • Analysis of clinical presentations and pathological findings.

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  • Synthesis of information regarding surgical outcomes and indications.

    • Main Results:

    • Choristomas commonly present as epibulbar or orbital tumors in children.
    • Associated conditions include astigmatism, coloboma, Goldenhar syndrome, and epidermal nevus syndromes.
    • Surgery is considered for visual impairment, cosmetic reasons, or to control growth.

    Conclusions:

    • Choristomas are diverse congenital tumors requiring careful evaluation.
    • While typically epibulbar, they can involve multiple ocular and orbital sites.
    • Management decisions are based on functional and aesthetic considerations.