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Case Description—A 13-year-old female Miniature Horse was evaluated for progressive unilateral exophthalmia of the left globe of 3 weeks' duration.

Clinical Findings—Results of a physical examination were unremarkable. Ophthalmic examination identified exophthalmus of the left globe with complete resistance to retropulsion and mild blepharoconjunctivitis. Computed tomography revealed a large, space-occupying mass within the left caudal maxillary and left conchofrontal sinuses. The mass extended into the left retrobulbar space and contacted the cribriform plate. Trephination yielded copious amounts of turbid yellow fluid. The diagnosis was a sinonasal cyst.

Treatment and Outcome—Subtotal surgical excision of the cyst via a frontonasal osteoplastic flap was curative, with complete resolution of the exophthalmus. Histologic examination confirmed diagnosis of a sinonasal cyst. There was no evidence of cyst recurrence by 4 months after surgery.

Clinical Relevance—Sinonasal cyst should be a differential diagnosis for retrobulbar disease in horses. Exophthalmia may be the only clinical finding in horses with a sinonasal cyst.

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in Journal of the American Veterinary Medical Association

Wildfires are a serious and expanding threat in western North America, and wildfire encroachment on human populations leads to widespread evacuation and emergency housing operations for residents and their companion animals and livestock. Veterinarians are frequently part of wildfire response efforts and are called upon to assist in rescue, evacuation, and emergency housing operations as well as to provide medical care for evacuated animals. Although veterinarians are likely familiar with the principles of transporting and housing terrestrial animals, emergency response for aquatic companion animals presents unique logistic challenges. Veterinarians familiar with aquatic animal evacuation, housing, and care prior to a wildfire response can extend the scope of disaster recovery. This report offers general guidance for rescuing, evacuating, housing, and caring for aquatic animals in the wake of a wildfire.

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in Journal of the American Veterinary Medical Association