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KMID : 1094020200370050282
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Journal of Veterinary Clinics
2020 Volume.37 No. 5 p.282 ~ p.285
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Malignant Anterior Uveal Melanoma Masquerading as Limbal Melanoma in a Shih-Tzu Dog with Recurrences of Hyphema
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Susanti Lina
Seo Kang-Moon
Kang Seon-Mi
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Abstract
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A 14-year-old neutered-male Shih-Tzu was referred for glaucoma and hyphema accompanied by systemic hypertension. After topical corticosteroid and antiglaucoma medications, the left eye (OS) progressed phthisically, but ocular hypertension redevelop one-year-and-seven-months later. Suspected limbal melanoma developed in peripheral cornea/limbal sclera with heavily pigmented cornea OS. Ultrasound biomicroscopy and ocular ultrasonography differentiated ciliary body origin-heterogeneous mass from limbal mass. Persistent hyphema and pigmented cornea might
obscure intraocular lesion and advanced diagnostic methods played a crucial role. Unlike the generally benign limbal
melanoma, aggressive treatment was recommended for uveal tumor. Histopathology of enucleated OS confirmed
malignant uveal melanoma with chronic hypertensive vasculopathy.
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KEYWORD
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anterior uveal melanoma, hypertensive vasculopathy, hyphema, limbal melanoma, ocular ultrasound
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