Clinicopathological study of florid cemento-osseous dysplasia of the jaws

Florid cemento-osseous dysplasia (FCOD) was newly added to the World Health Organization classification of odontogenic tumors in 1992. We reviewed 7 cases of FCOD treated between 1994 and 2001. All patients were women. The mean age was 69.4 years, with a range of 60 to 89 years. FCOD lesions often occurred in the posterior part of the mandible. The lesions were removed under general anesthesia. Histopathological examination of the surgical specimens showed that FCOD consisted of many lobulated masses resembling cementum. FCOD lesions were often surrounded by loose, fibrous connective tissue containing many small cementicle-like masses.Computed tomography and 99mTc-MDP scintigraphy were useful for both diagnosis and management of FCOD.