Tumor mixto epitelial y estromal del riñón. Presentación de un caso y revisión de la literatura

Abstract

Mixed epithelial and stromal tumor of the kidney is a rare benign kidney neoplasia that predominantly occurs in middle-aged women. It presents as a well-defined biphasic lesion with solid and cystic components in both tomography and magnetic resonance imaging, reflecting the proliferation of the stromal element and the presence of multiple cysts that are the manifestation of the epithelial element. Malignant transformation, recurrence, and metastasis are rare, but isolated cases and small series have been reported in the literature.