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Subconjunctival Dirofilariasis Presenting as Orbital Cellulitis.
Smitha K Shambhu1, Praveen R Murthy1, Placid E D'souza2
1Department of Orbit and Oculoplasty, Prabha Eye Clinic and Research Center.
Ophthalmic Plastic and Reconstructive Surgery
|June 18, 2019
Summary
Human ocular Dirofilariasis, a rare zoonotic disease caused by Dirofilaria repens, typically presents as a subconjunctival nodule. This case highlights a rare presentation of orbital cellulitis due to this parasitic eye infection.
Area of Science:
- Veterinary Ophthalmology
- Parasitology
- Zoonotic Diseases
Background:
- Human ocular Dirofilariasis is an uncommon zoonotic parasitic infection.
- It is caused by the nematode Dirofilaria repens.
- Typical clinical presentation involves a subconjunctival nodule with hyperemia.
Observation:
- A 91-year-old male presented with symptoms mimicking orbital cellulitis.
- Ocular examination revealed signs suggestive of parasitic infestation.
- The patient's condition was investigated for unusual causes of orbital inflammation.
Findings:
- A live filarial worm was surgically removed from the subconjunctival space.
- The identified nematode was confirmed to be Dirofilaria repens.
- Histopathological analysis supported the diagnosis of Dirofilaria repens infestation.
Implications:
- This case expands the known clinical spectrum of ocular Dirofilariasis.
- It underscores the importance of considering parasitic infections in orbital inflammatory conditions.
- Prompt surgical intervention is crucial for managing ocular Dirofilariasis and preventing complications.
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