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

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 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 radiolucentarea 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. Allcases 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 recurrenceis not expected (AU)

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Adenoid cystic carcinoma of the tongue: Case report and literature review

Adenoid cystic carcinoma is a common malignant neoplasm originated from salivary glands. The clinical and pathological findings typical of this tumor include slow growth, perineural invasion, and potential local recurrence. It accounts for nearly 2% to 4% of head and neck area tumors. In minor salivary glands it usually affects the palate. We described herein the case of a patient who presented a posterior tongue lesion, which was treated with surgery and radiotherapy as additional treatment. We also carried out a brief literature review on the subject