Well-differentiated liposarcoma of the floor of the mouth: Report of a rare case and review of the literature.

Liposarcomas are extremely rare in the oral cavity. Less than 100 cases of oral liposarcoma have been reported in the world wide literature, mostly occurring in the buccal mucosa, whereas only <10 cases have been reported in the floor of the mouth. We present a rare case of oral liposarcoma that occurred in the floor of the mouth of a 45-year-old female patient. She had a history of two previous recurrences and underwent surgical excision with 24 months of follow-up. Clinical as well as histopathological features and therapeutic approaches of liposarcomas are discussed here, and a literature review is presented. Intraoral liposarcomas have a high rate of local recurrences but generally favorable prognosis based on the histopathologic subtype, location and clear surgical margins. Conservative surgical therapy without adjuvant chemoradiotherapy is recommended, due to the rarity of distant metastasis.