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Related Experiment Videos

Encapsulated triamcinolone cyst after subtenon injection.

Carmen K M Chan1, Shaheeda Mohamed, Emily W H Tang

  • 1Department of Ophthalmology and Visual Sciences, The Chinese University of Hong Kong, and Hong Kong Eye Hospital, Hong Kong, China.

Clinical & Experimental Ophthalmology
|June 13, 2006
PubMed
Summary

A subtenon cyst formed after a superficial subtenon triamcinolone injection for Behçet

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Area of Science:

  • Ophthalmology
  • Ocular inflammation
  • Corticosteroid therapy

Background:

  • Behçet's disease is an inflammatory condition often requiring ocular treatment.
  • Subtenon triamcinolone injections are used for chronic recurrent uveitis.
  • Superficial placement of injections can lead to complications.

Observation:

  • A subtenon cyst developed after an inadvertent superficial anterior subtenon injection.
  • The cyst contained encapsulated triamcinolone crystals.
  • The uveitis recurred, necessitating a repeat injection.

Findings:

  • Histology confirmed a fibrous encapsulated cavity with triamcinolone crystals.
  • Superficial anterior subtenon injections can lead to cyst formation.
  • Encapsulation may hinder corticosteroid absorption and efficacy.

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Implications:

  • Subtenon cyst formation is a potential complication of triamcinolone injections.
  • Careful injection technique is crucial for effective treatment of ocular inflammation.
  • This complication can impact the management of refractory glaucoma and uveitis.