Abstract
Presence of iridociliary cysts may cause a specific form of uveitis not associated with any known systemic disease or underlying cause. The condition was previously characterized in golden retrievers. However, Labrador retrievers, Great Danes and Boston terriers are reported to develop a similar disease condition. The following report documents seven cases of iridociliary cysts, with or without associated pigmentary uveitis, in American bulldogs from Brazil and Spain. Although not an uncommon disease, this syndrome has been relatively infrequently documented in the literature, with only one study in the American bulldog. This article describes clinical findings as well as medical and surgical management of each case. Because some of the patients were closely related in this series, a possible hereditary basis is considered for pigmentary uveitis associated with iridociliary cysts in American bulldogs.
Highlights
Iris and ciliary body cysts are a frequent incidental finding in dogs and may be either congenital or acquired (Jensen, 1971; Gelatt et al, 1979; Pumphrey et al, 2013)
Due to the fact that most uveal cysts occur in middleaged and older dogs, has been suggested that the majority of cysts are acquired, with trauma or inflammation proposed as probable causes
Presence of pigmentary uveitis associated with iridociliary cysts in American Bulldogs is characterized by the presence of iridociliary cysts, pigment dispersion into lenticular, iridal, and corneal endothelial surfaces in addition to a variable degree of uveitis
Summary
Iris and ciliary body cysts are a frequent incidental finding in dogs and may be either congenital or acquired (Jensen, 1971; Gelatt et al, 1979; Pumphrey et al, 2013). In two cases (Cases 1 and 2 – Table 1) collapsed cysts and pigment deposits were observed in the corneal endothelium and in the anterior lens capsule (Figure 2). Uveitis, when present varied in intensity and was diagnosed in all cases via observing classical clinical signs, a combination of blepharospasm, flare and episcleral congestion (“red eye”), and, sometimes lowering of intraocular pressure (IOP). Uveitis was clincially diagnosed in five of the seven patients examined, in wich red eyes were presented and cysts observed. Flare could be noticed in the anterior chamber and the IOP ranged from 7 mmHg to 11 mmHg. Uveitis was more severe in eyes that had numerous pigmented iris cysts. Uveitis was more severe in eyes that had numerous pigmented iris cysts In these cases tearing and painful eyes, corneal edema, iris redness and flare in Treatment. Three cases were diagnosed in Brazil, two of which were siblings, though they were from different litters (Cases 1 and 2 – Table 1)
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