Myofibromas of the oral cavity.

Solitary infantile myofibromatosis or myofibroma of the oral cavity is an uncommon condition with only 32 reported cases in the English-language literature. This article presents four additional cases of these solitary myofibroblastic lesions. In addition, the clinical and histologic features of this uncommon spindle cell neoplasm have been reviewed. The similarity in both the clinical and histopathologic features of the "adult" and "infantile" lesions support the proposal that myofibroma is a more accurate and acceptable term for these solitary myofibroblastic lesions of the oral cavity.