{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T16:27:13Z","timestamp":1762100833924,"version":"3.38.0"},"reference-count":36,"publisher":"American Veterinary Medical Association (AVMA)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["javma"],"published-print":{"date-parts":[[2008,7,15]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:p><jats:bold>Case Description<\/jats:bold>\u2014A 13-year-old female Miniature Horse was evaluated for progressive unilateral exophthalmia of the left globe of 3 weeks' duration.<\/jats:p>\n<jats:p><jats:bold>Clinical Findings<\/jats:bold>\u2014Results 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.<\/jats:p>\n<jats:p><jats:bold>Treatment and Outcome<\/jats:bold>\u2014Subtotal 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.<\/jats:p>\n<jats:p><jats:bold>Clinical Relevance<\/jats:bold>\u2014Sinonasal cyst should be a differential diagnosis for retrobulbar disease in horses. Exophthalmia may be the only clinical finding in horses with a sinonasal cyst.<\/jats:p>","DOI":"10.2460\/javma.233.2.285","type":"journal-article","created":{"date-parts":[[2008,7,15]],"date-time":"2008-07-15T15:16:19Z","timestamp":1216134979000},"page":"285-288","source":"Crossref","is-referenced-by-count":23,"title":["Exophthalmus secondary to a sinonasal cyst in a horse"],"prefix":"10.2460","volume":"233","author":[{"given":"Matthew J.","family":"Annear","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anne J.","family":"Gemensky-Metzler","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yvonne A.","family":"Elce","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sarah G.","family":"Stone","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"ref1","series-title":"Equine internal medicine","first-page":"995","article-title":"Equine ophthalmology","author":"Wilkie","year":"2004"},{"key":"ref2","series-title":"Vet Radiol Ultrasound","first-page":"240","article-title":"Ultrasonographic diagnosis retrobulbar abscesses","volume":"36","author":"Homco","year":"1995"},{"key":"ref3","series-title":"J Am Vet Med Assoc","first-page":"1703","article-title":"What is your diagnosis? 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