[Ipsilateral metanephric adenoma and clear-cell carcinoma. Personal experience and review of the literature]. / Adenoma metanéfrico y carcinoma de células claras ipsilaterales. Experiencia personal y revisión de la literatura.

OBJECTIVES: To perform an update in such an infrequent pathology and to report our own experience. METHODS: We report two new cases and review the national and international literature. RESULTS: We report two cases of ipsilateral metanephric adenoma and clear cell carcinoma. The first case, metachronous, was detected after 15 months of follow-up in a patient who underwent partial nephrectomy due to clear cell carcinoma. The second one, synchronic, was incidentally discovered in the surgical specimen. CONCLUSIONS: Metanephric adenoma is as infrequent neoplasia; its diagnosis is histological, being difficult to suspect by complementary diagnostic tests, so that most cases undergo surgical treatment in spite of its benign character.