A CASE OF OSSIFYING FIBROMA IN HORSE
Abstract
A case of ossifying fibroma has been described in the jaw of filly of 3 months of age of Pure spanish breed. The mass, of rapid growth, was located in the pertaining to the rostral jaw region nearby to the extreme incisor tooth. The radiological image shows radiolucid limited areas and neoformation osseous, displacement of the dental pieces and projection towards the interior of bone radiodensity 3, presenting radiopaque lines. Microscopically, the superficial area has necrosis with abundant bacteria, neutrophils and vascular thromboses. The middle and deep zones present a very cellular connective tissue constituted by cells similar to fibroblast cells, and fundamental substance that shows a pre-osseous structure. Between bands of connective tissue, bony tissue perfectly differentiated with the presence of osteoblast, osteocyte and osteoclast cells are observed. The observations of the histopathologic study confirm the diagnosis of ossifying fibroma. This tumor of strange presentation in horse, in spite of it benign characteristics, presents reserved evolution and prognosis.Downloads
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