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Ophthalmic dirofilariasis.

D D'Heurle1, B H Kwa, A C Vickery

  • 1University of South Florida, Tampa.

Annals of Ophthalmology
|July 1, 1990
PubMed
Summary
This summary is machine-generated.

Ocular Dirofilaria tenuis infections are rare, with a case reported in Florida. Surgical removal identified the subconjunctival worm as immature D. tenuis, commonly found in raccoons and spread by mosquitoes.

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Area of Science:

  • Ophthalmology
  • Parasitology
  • Veterinary Medicine

Background:

  • Dirofilaria tenuis is a filarial nematode that rarely infects humans.
  • Ocular involvement, though uncommon, represents a significant diagnostic challenge.

Observation:

  • A case of subconjunctival Dirofilaria tenuis infection is presented in a patient from Florida.
  • The patient presented with a visible subconjunctival worm, leading to surgical intervention.

Findings:

  • The surgically removed worm was identified as an immature Dirofilaria tenuis.
  • Geographic distribution of Dirofilaria tenuis ophthalmic cases is concentrated in the southeastern United States, particularly Florida.

Implications:

  • This case highlights the importance of considering Dirofilaria tenuis in the differential diagnosis of subconjunctival masses, especially in endemic areas.

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  • Understanding the natural hosts (raccoons) and vectors (mosquitoes) is crucial for public health awareness and prevention strategies.