Abstract
Lipomas are mesenchymal neoplasms consisting of mature adipocytes, which account for only 1% to 5% of all oral benign tumors. These lesions are occasionally altered by an admixture of other mesenchymal elements that comprise an intrinsic part of the tumor. A 76-year-old white woman was referred for evaluation of a painless, slow-growing swelling on the tongue that had been identified 3 years earlier. Her medical history was unremarkable. Intraoral examination revealed a yellowish, soft, sessile nodule on the right lateral border and ventral surface of the tongue, measuring approximately 2 cm. Under the diagnostic hypothesis of lipoma, an excisional biopsy was performed. Histopathologic analysis revealed a well-delimited proliferation of mature adipocytes arranged in lobules and separated by thin septa of fibrovascular connective tissue. The final diagnosis was lipoma. Eight months after surgical excision, clinical signs of recurrence were not detected. The patient remains under clinical follow-up.
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