Oral lipomas in a Brazilian population: A 10-year study and analysis of 450 cases reported in the literature

EC. Studart-Soares, FW. Costa, F. Sousa, AP. Alves, RL. Osterne
2010 Medicina Oral  
Objectives: Lipomas are common benign mesenchymal neoplasms that rarely occur in the oral cavity and correspond to less than 4.4% of all benign oral soft tissue tumors. This study describes the clinical, radiological and histological features of cases of oral lipomas seen over a period of 10 years and compared the findings with those reported in the literature. Study Design: All cases of oral lipomas seen between 1999 and 2009 were retrieved from the archives of the Stomatology Division of the
more » ... gy Division of the Federal University of Ceará, Brazil. Age, gender, tumor location, clinical findings, duration, histological subtypes, and treatment outcome were recorded. In addition, the English-language literature was searched for studies published between 1966 and 2009. Results: Ten patients (6 women and 4 men) were enrolled in this study. The mean age was 53.4 years (range: 21-73 years). The specific sites involved were the oral mucosa (n=5), vestibule (n=3), gingiva (n=1), and retromolar region (n=1). The mean size of the tumors was 1.94 cm (range 1.0 to 3.0 cm). Radiographically, only one case appeared as a radiolucent area on occlusal film. Microscopically, 4 cases were classified as simple lipoma, 4 as fibrolipoma, 1 as myxoid lipoma, and 1 as angiolipoma. The duration of the tumors ranged from 2 to 84 months, with a mean duration of 30.4 months. All cases were treated by simple surgical excision and there was no recurrence after a mean post-treatment period of 34.5 months. The findings were compared with 450 cases of oral lipomas reported in the literature. Conclusions: Lipomas continue to be an uncommon neoplasm of the oral cavity. Radiography is a valuable tool due to the possible occurrence of bone involvement. Surgical excision is the treatment of choice and recurrence is not expected.
doi:10.4317/medoral.15.e691 fatcat:2ssagiw7rjbttb72pbwnfe3tfa