Ophthalmomyiasis (interna posterior) of the posterior segment and central nervous system myiasis: Cuterebra spp. in a cat

Abstract

A unilateral ophthalmomyiasis posterior in a 5-year-old female spayed Domestic Long-haired cat of a third or fourth stage instar Cuterebra spp. larvae is reported. The cat was presented for depression and anorexia. The organism was found on physical examination at presentation. The cat was euthanized because of the worsening systemic condition. The larva was demonstrated by histopathology with coagulation necrosis and hemorrhage of the optic nerve, retina and choroid, and anterior uveitis. No significant cerebrum and anterior brain stem lesions were found.

Parasitic Helminths of Free-Ranging Mink (Neovison vison mink) From Southern Florida

“…obs.). More serious manifestations, especially in cats, involve the eyes (ophthalmomyiasis; Johnson et al, 1988;Harris et al, 2000;Wyman et al, 2005;Stiles and Rankin, 2006), respiratory system (nasal/pharyngeal/tracheal myiasis; Thirloway, 1982;Fitzgerald et al, 1996;Dvorak et al, 2000), or central nervous system (cerebrospinal myiasis; Cook et al, 1985;Hendrix et al, 1989;Glass et al, 1998;King, 2000). In these cases, clinical signs and symptoms can include anorexia, lethargy, inflammation, retinal damage, impaired vision, dyspnea, seizures, paralysis, or a combination, and definitive diagnoses can be difficult (many of the above references; also see Greenberg et al, 2004).…”

Ophthalmomyiasis interna anterior in a cat: surgical resolution

“…have been reported 1,3,13,14 . The most common cause of ophthalmomyiasis interna in the cat and dog, in which the larva was identified, was Cuterebra spp 8–10 …”

“…Ophthalmomyiasis is the presence of dipteran fly larvae in the orbit or adnexa (ophthalmomyiasis externa) or within the globe (ophthalmomyiasis interna). Ophthalmomyiasis interna has been uncommonly reported in humans, 1–4 dogs, 5,6 and cats 5,7–10 . In the two cats that have been reported to date in which a larva was surgically removed from the anterior segment, blindness resulted from retinal degeneration in one cat 8 and severe corneal edema and retinal degeneration in the other cat 9 .…”

Seroprevalence of Toxoplasma gondii in Cats From St. Kitts, West Indies

“…obs.). More serious manifestations, especially in cats, involve the eyes (ophthalmomyiasis; Johnson et al, 1988;Harris et al, 2000;Wyman et al, 2005;Stiles and Rankin, 2006), respiratory system (nasal/pharyngeal/tracheal myiasis; Thirloway, 1982;Fitzgerald et al, 1996;Dvorak et al, 2000), or central nervous system (cerebrospinal myiasis; Cook et al, 1985;Hendrix et al, 1989;Glass et al, 1998;King, 2000). In these cases, clinical signs and symptoms can include anorexia, lethargy, inflammation, retinal damage, impaired vision, dyspnea, seizures, paralysis, or a combination, and definitive diagnoses can be difficult (many of the above references; also see Greenberg et al, 2004).…”