Metastatic renal cell carcinoma presenting as maxillary lesion: Report of two rare cases

Oral cavity is not a usual site for metastasis, accounting about 1% of all oral tumors. The majority site for metastasis is the mandible and less common the maxilla followed by intraoral soft tissue. These tumors may be the first clinical manifestation of the primary lesion. One of the most important sites of the primary neoplasm that metastasizes to the jaws is kidney. Therefore, considering to this fact that the metastatic tumors always are not seen in a typical site, it is necessary to rule out the metastatic carcinomas to jaws. We presented two cases of metastatic renal cell carcinoma to maxilla with two different clinical features, one of them with an intraosseous lytic lesion and the other one with a large exophytic mass.