Central granular cell odontogenic fibroma.

First described in 1962, the so-called granular cell ameloblastic fibroma has been a rarely reported benign odontogenic tumor. On reviewing the literature, we have identified eight previously reported cases. All cases involved well-circumscribed radiolucencies in women who ranged in age from 53 to 65 years. Seven lesions occurred in the posterior body of the mandible, and one occurred in the premolar region of the maxilla. All lesions were treated with surgical excision, and no recurrences were identified during follow-up periods of 6 to 144 months. Two additional cases also appear to represent instances of this neoplasm, which bring the total number identified to ten. We describe the clinical, radiographic, and histopathologic features of two additional cases and suggest reasons the tumor should be referred to as central odontogenic fibroma, granular cell variant.