Benign Mixed Epithelial and Stromal Tumor of the Kidney

ArticleinPathology - Research and Practice 194(6):445-8 · February 1998with4 Reads
Impact Factor: 1.40 · DOI: 10.1016/S0344-0338(98)80038-1 · Source: PubMed

We describe a distinctive benign tumor of the kidney in a 48-year-old woman, which was composed of well differentiated ducts set in the spindle cell stroma which was muscle actin, smooth muscle actin and desmin positive, and was morphologically similar to the ovarian stroma. No immature appearing epithelial renal or mesenchymal tissue was present in the tumor. Histologically, the tumor differed from the nephrogenic adenofibroma and the rare cases of adult Wilms tumors, mesoblastic nephromas and cystic nephromas.