Fibromyxomas of the jaw

Myxomas can be found in heart, skin, sub-cutaneous tissue, and centrally in the bone but are rare in the oral cavity. Fibromyxoma (FM), the locally invasive benign tumor of the jaw, though rare in the general population, occurs with excessive frequency among young female patients. The tumor develops from the ecto-mesenchymal portion of the tooth germ and shows an inactive effect of nests of odontogenic epithelium on mesenchymal tissue or as a direct myxomatous change in fibrous tissue; hence, it is also called as odontogenic myxoma. The tumor usually occurs in the posterior mandible and constitutes around 3–6% of all odontogenic tumors. Clinical, radiographic, histopathologic, and immunohistochemical investigations play an important role in the accurate diagnosis of FM. A complete surgical excision with long term follow-up is essential for successful management. This clinical study emphasizes the unusual variations in presentation of FM of the jaws.