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KMID : 1094020180350030107
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Journal of Veterinary Clinics
2018 Volume.35 No. 3 p.107 ~ p.110
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Partial Resection of Maxillary Ossifying Fibroma in a Thoroughbred Stallion
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Lee Sang-Kyu
Kim Byung-Hyun
Luong Richard
Jung Bok-Sun
Im Hyung-Ho
Lee Jeong-Hun
Im Eo-Jin
Lee In-Hyung
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Abstract
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A 5-year-old Thoroughbred race horse was presented to Busan Korea Racing Authority equine hospital witha 3-year history of a slow-growing left rostral maxillary mass. The location and progressive growth of the masseventually resulted in poor food prehension, quidding and mouth bit placement. The mass was solitary and hard, andcovered by normal smooth oral mucosa. Radiographic examination of the maxillae showed a flocculated and mixedradiolucent lesion protruding outward and displacing the 202 and 203 teeth caudally. The 202 tooth was in normalsize and the 203 tooth was hypoplastic on radiography. Under general anesthesia, a partial surgical resection of themass was performed to minimize functional loss and facilitate prompt return to track. After surgery, there wasimprovement in food intake, mouth bit placement, and cosmetic appearance. Histopathological examination determinedthe resected maxillay mass to be an ossifying fibroma. However, there was continued growth of remnant mass inthe maxilla. Equine ossifying fibroma is a rare condition and primarily affects the rostral mandible, and less commonly,the maxillae. In this case, the lesion was slow-growing, and caused cosmetic and functional impairments, includingpoor food intake and reduced trainability. Surgical resection was performed, but the effect of treatment was limiteddue to advanced size / stage of the tumor. Early dental care is suggested for horse owners to prevent belated identificationand improve successful treatment of oral disorders like ossifying fibroma
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KEYWORD
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Ossifying fibroma, Thoroughbred, Partial resection, Maxillae
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