DOI: 10.36347/sjmcr.2023.v11i03.007

Pages: 273-278

Mixed Epithelial Stromal Tumor kidney (MESTK), is a rare renal tumor, with stromal as well as epithelial components. It is predominantly benign with rare malignant transformation as morphology resembling that of a stromal sarcoma, carcinosarcoma, rhabdomyosarcoma, chondrosarcoma, undifferentiated sarcoma, or malignant tumour with rhabdoid features. Here we present 2 cases of MEST of kidney both are middle aged females with history of episodes of hematuria. Radiology of both showed heterogenous lesion. Histopathological and IHC findings favoured a diagnosis of first case as MEST kidney benign entity and second case as MEST with malignant transformation.