ABSTRACT

Mixed epithelial and stromal tumors of the kidney (MEST) are rare tumors. These tumors appear solid-cystic and central localized in the kidney. Therefore it is difficult to differentiate them from malign tumors. Hormonotherapy are responsible for tumor etiology. For this reason, they are more frequently observed in women. Positive surgical margins and biopsy increases the recurrence of tumors. Definitive diagnosis and treatment is complete surgical excision in these tumors. (Bulletin of Urooncology 2014;13:187-189)