Intraosseous angiomyoma of the mandible.

Leiomyoma is a benign smooth muscle tumor that usually is found in the uterus, gastrointestinal tract, or skin. It appears infrequently in the oral cavity. Intraosseous leiomyomas are rare; to date, only 14 cases have been reported in the English-language literature. Gnathic leiomyoma occurs more commonly in the posterior mandible as an asymptomatic swelling with variable radiographic appearance. Microscopically, 53% of gnathic leiomyomas have a prominent vascular component that warrants a diagnosis of angiomyoma. Surgical excision is the treatment of choice. This article describes the clinical-pathological features of an exceptional intraosseous angiomyoma of the mandible.