Leiomyosarcomas of the oral tissues: clinicopathologic analysis of 50 cases.

Purpose: Primary oral leiomyosarcomas are rare tumors. Information regarding the biological behavior, prognosis, and appropriate management of this neoplasm is lacking in the literature. The purpose of this report was to summarize the data of isolated case reports of primary oral leiomyosarcoma that have been published in the English literature during the past 25 years.

Primary malignant melanoma of the oral mucosa.

Purpose: The occurrence of primary oral melanoma is very rare. Large clinical series suggesting appropriate treatment modalities are lacking; the clinician has to rely on case reports to gain insight into the management of this tumor, which is much more aggressive than its skin counterpart. Patients and methods The cases of 5 patients with primary oral melanoma during a 6-year period were retrospectively reviewed.