Abstract
Juvenile ossifying fibroma is classified as a rare fibro-osseous neoplasm that usually but not exclusively occurs in children under 15 years of age, affecting the craniofacial bones. It is a locally aggressive lesion and spreads quickly. Histologically, it is composed of cellular, fibrous stroma as well as loose myxoid foci, areas of pseudocystic degeneration and small clusters of multinucleated giant cells. Based on the type of mineralized component, two histological variants are recognized, psammomatoid and trabecular, with the psammomatoid variant containing concentric lamellated ossicles and trabecular variant containing irregular strands of highly cellular osteoid encasing plump and irregular osteocytes. Reported here is a case of trabecular juvenile ossifying fibroma involving the mandible of a 19-year-old boy.