Abstract
Metastatic tumors comprise 1% of neoplasms in the mouth, and lipomas comprise 1% to 4%. In this work we present 2 cases that show different lesions in distinct points can present clinical similarity. In both cases the patients sought dental care complaining of a nodular lesion in the asymptomatic tongue. The 78-year-old woman reported that the lesion was growing slowly, and the 60-year-old man reported in the anamnesis to have kidney cancer. From a clinical point of view the lesions were very similar. However, after the biopsy, histopathologic report showed distinct characteristics; one was diagnosed as having lipoma and the other a metastasis of the primary kidney cancer. The correct diagnosis of these lesions is of great importance since the management, treatment, and prognosis are distinct, where the metastatic lesion may show therapeutic failure of a primary neoplasm or a latent neoplasm. Both patients are followed in observation.
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