Orbital cellulitis associated withToxocara canisin a dog

Abstract

Reports of Toxocara canis ocular larva migrans are uncommon in animals, with only a few cases reported. Most reports involve larval migration into the retina and choroid, with parasitic invasion of the orbit reported only in experimental studies. This is the first clinical case of Toxocara canis infection in the retrobulbar region of a 10-year-old, cross-bred male dog presenting with unilateral orbital cellulitis. Ophthalmic signs included protrusion of the nictitating membrane, chemosis, exophthalmos and hypertropia. The parasite was diagnosed by histologic and parasitologic examination of orbital tissues, which were removed during enucleation.

Orbital abscess bacterial isolates andin vitroantimicrobial susceptibility patterns in dogs and cats

“…), 10,11,15,26–30 and parasites (e.g. Dirofilaria immitis , Toxocara canis , Onchocerca lienalis , Pneumonyssus caninum , Taenia crassiceps , and Leishmania infantum ) 31–36 . A single feline case of orbital Cuterebra spp.…”

“…Dirofilaria immitis, Toxocara canis, Onchocerca lienalis, Pneumonyssus caninum, Taenia crassiceps, and Leishmania infantum). [31][32][33][34][35][36] A single feline case of orbital Cuterebra spp. larval migration associated with concurrent bacterial infection was identified in this review.…”

Eye

“…4,6,9,51,[118][119][120][121][122][123][124] A-mode and B-mode ultrasound examinations are used extensively in humans to evaluate the retrobulbar tissues. Reports of B-mode application in veterinary medicine are available, describing the more common causes of retrobulbar diseases, inflammatory lesions, lymphoma, and hemorrhage.…”

“…Posterior segment penetration by grass awn foreign bodies have been described in both the dog 128 and cat ( Figure 5-37). 124 Retrobulbar cellulitis can be recognized on B-mode evaluation by distortion or obliteration of the normal retrobulbar architecture ( Figure 5-38). 79 Cellulitis secondary to retrobulbar infection by Toxocara canis in a dog has also been reported.…”

Biometric, B-mode and color Doppler ultrasound assessment of eyes in healthy dogs

“…The ophthalmic ultrasonographic B-scan is used to assess eye periocular and retrobulbar structures (Laus et al 2003, Tovar et al 2005, Singh & Young 2006; in neoplasm afflictions (Baptista et al 2006) and in biometry, assessing variations in size, shape and position of these structures, helping in determining the prosthesis size and intra-eye pre-surgery (Hijar 2008).…”