Odontogenic Myxoma with Osteocementum-like Calcifications: A Rare Histological Variant

Abstract

Odontogenic myxoma is a benign, locally aggressive neoplasm of mesenchymal origin. Histologically, the tumor exhibits spindle or stellate cells embedded in loose myxoid extracellular matrix and sometimes sparsely scattered residual bone and dystrophic mineralization in tumor stroma. Although, lesion sometimes presents with residual bony trabeculae but the formation of osteocementum-like calcifications is an extremely rare phenomenon. The present paper highlights two cases of odontogenic myxoma with osteocementum-like calcifications with emphasis on additional differential diagnosis that arose because of them and their effect on behavior of the lesion.