Ameloblastic fibro-odontoma in mandibular incisor of a bullock-a case report

Abstract

A three year old bull showed a medium sized tumor mass of 3 cm thick and 3.5 cm wide in between first two lower mandibular incisors. After excision the cut surface of tumor mass appeared white and firm with streaks of hard tissue. On histopathological examination, tumorous growth revealed long cords of well differentiated odontogenic epithelium in a background of loose mesenchymal tissue. Neoplasm composed of islands, cords and strands of odontogenic epithelium separated by a large amount of fibrous connective tissue. Foci showed edema and infiltration of neutrophils. Fibroblastic cell proliferation was more prominent.Low-power view showed nests of ameloblastic cells in a fibroblastic stroma. The odontogenic epithelial cells have distinct cell borders, moderate amounts of pale eosinophilicfibrillar cytoplasm, basilar nucleus with 1-2 distinct nucleoli. On the basis of gross and histopathological examination, neoplasm was diagnosed as ameloblastic fibro-odontoma. The tumor mass was excised under local anaesthesia and there was no recurrence reported upto 4 week.