Immunostaining for alpha B-crystallin, alpha-smooth muscle actin, CAM5.2, CD34, chromogranin (Chr), Cytokeratin7, M2A oncofetal antigen (D2–40), Desmin, epithelial membrane antigen (EMA), hemopoietic cell kinase (HCK), neuron specific enolase (NSE), P63, renal cell carcinoma marker (RCC-Ma), S100, Wilms’ tumor 1 (WT1), CD57 and CD15 were negative. Here, WT1 is linked to renal cell carcinoma.