Ocular dirofilariasis: a case series of 8 patients.

Dirofilaria repens is an endemic parasite in Mediterranean countries that mostly affects animals. Rarely, however, it can infect humans. This case series presents patients with ocular infections due to D. repens.
A chart review was performed of patients with ocular dirofilariasis after the year 2000, treated at a tertiary referral centre in Greece. Data were collected on the ocular, microbiological, or/and histopathological aspects and treatment.
Eight cases of unilateral ocular dirofilariasis were identified, of which 5 were subconjunctival (1 masquerading as nodular scleritis) and were removed through a conjunctival incision, 2 cases were intravitreal and were removed with vitrectomy, and 1 was intraorbital (adjacent to the roof of the orbit). The latter appeared as an encapsulated mass and subsequent histological examination revealed the presence of the parasite. Of the 8 cases recorded after the year 2000, 7 appeared within the last 6 years (4 cases within the last 3 years). The majority of cases involved residents of the Ionian Islands (7 of 8 cases).
D. repens can affect various ocular and periocular tissues. A progressive increase in the incidence of dirofilariasis was observed, which is potentially associated with climate changes in warm and moist areas where this parasite is endemic.
AuthorsChris D Kalogeropoulos, Maria I Stefaniotou, Konstantina E Gorgoli, Chrissanthy V Papadopoulou, Chrysavgi N Pappa, Costas A Paschidis
JournalMiddle East African journal of ophthalmology (Middle East Afr J Ophthalmol) 2014 Oct-Dec Vol. 21 Issue 4 Pg. 312-6 ISSN: 0975-1599 [Electronic] India
PMID25371636 (Publication Type: Case Reports, Journal Article)
  • Adult
  • Aged
  • Animals
  • Conjunctival Diseases (epidemiology, parasitology, surgery)
  • Diagnosis, Differential
  • Dirofilaria repens (isolation & purification)
  • Dirofilariasis (epidemiology, parasitology, surgery)
  • Eye Diseases (epidemiology, parasitology, surgery)
  • Eye Infections, Parasitic (epidemiology, parasitology, surgery)
  • Female
  • Greece (epidemiology)
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • Orbital Diseases (epidemiology, parasitology, surgery)
  • Scleritis (diagnosis)
  • Tertiary Care Centers
  • Vitrectomy
  • Vitreous Body (parasitology, surgery)

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