Fig. 8From: Classification of renal cell tumors – current concepts and use of ancillary tests: recommendations of the Brazilian Society of PathologyRenal cell carcinoma with leiomyomatous stroma (RCCLMS). A tumor intermixed epithelial and stromal components (a HE, 2x). Low-grade clear cells growing in tubular pattern separated by abundant stroma with smooth muscle differentiation (b HE, 40x and c HE, 100x). Cytokeratin 7 expression is strong and diffuse (d 2x) and carbonic anhydrase IX shows membranous expression (e 100x). The surrounding stroma is reactive for desmin (f 40x)Back to article page