Microsporidial keratopathy in two dogs.

Emma Scurrell, Sue Manning, Pedro Malho, Alex Civello, John Mould, Rossella Carrozza, Bart E Wagner

Veterinary ophthalmology 2020 Mar

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A microsporidial keratopathy is described in two dogs. Both dogs presented with a unilateral stromal keratopathy characterized by multifocal coalescing opacities, and the diagnosis was made on histopathologic examination of keratectomy specimens. Transmission electron microscopy (TEM) on formalin-fixed, paraffin-embedded corneal tissue was performed in one dog, and the morphologic features were consistent with Nosema species infection. Both dogs were initially diagnosed and treated by superficial keratectomy. One dog received additional antifungal medication and underwent a penetrating keratoplasty following local recurrence two years later. No other systemic lesions attributable to the microsporidial infection were identified clinically. The clinical and diagnostic pathology findings, treatment, and follow-up are discussed. © 2019 American College of Veterinary Ophthalmologists.

Citation

Emma Scurrell, Sue Manning, Pedro Malho, Alex Civello, John Mould, Rossella Carrozza, Bart E Wagner. Microsporidial keratopathy in two dogs. Veterinary ophthalmology. 2020 Mar;23(2):402-408