PMC8108087_01
Axial CT image (bone algorithm) of the cat described in this report. CT was performed owing to chronic nasal signs and prior to onset of ocular signs. Both globes are visible and of normal density in this image. The hyperdense structures within the globes are the lenses and appear asymmetrical due to uncoordinated rotation of the globes, which is a normal and expected finding in cross-sectional imaging performed under general anesthesia
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Both globes appeared normal in CT images (Figure 1).
Clinical photograph showing diffuse corneal edema with peripheral neovascularization and marked intraocular inflammation characterized by hypopyon and fibrin in the anterior chamber (star)
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Additional findings included diffuse corneal edema with peripheral neovascularization, and intracameral fibrin and hypopyon OD (Figure 2).
Ultrasound image of globe and orbit OD. Orbital structures are considered normal. Hypoechoic material is seen in the anterior chamber and at the level of the ciliary body (stars); a focal discontinuity in the posterior lens capsule is suspected (arrow)
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Ocular and orbital ultrasound suggested that pathology was confined to the globe (Figure 3).
(a) Subgross image of globe (hematoxylin and eosin stain). Basophilic material (consisting primarily of degenerate neutrophils with intracellular bacteria) is visible in the anterior chamber, surrounding the lens and lining the posterior segment. (b) Material surrounding the lens (Gram stain). Numerous degenerate neutrophils with intracellular Gram-positive bacteria are visible (examples indicated by arrows; x 100 magnification, bar = 10 microm). (c) Ruptured posterior lens capsule and intralenticular neutrophils (hematoxylin and eosin stain). The scrolled capsule and intralenticular neutrophils (arrow) are consistent with penetrating trauma to the posterior aspect of the lens prior to enucleation (x 20 magnification, bar = 50 microm)
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Histopathologic evaluation of the globe revealed a severe suppurative endophthalmitis with penetrating posterior lens trauma, intralenticular neutrophils and retinal detachment (Figure 4).