Figure 1b. Clear cell sarcoma of the kidney. (a) Photograph of the cut surface of a resected specimen of clear cell sarcoma of the kidney shows a well-circumscribed tumor. (Courtesy of Frances V. White, MD, Washington University School of Medicine, St Louis, Mo.) (b) Photomicrograph (original magnification, x200; hematoxylin-eosin stain) shows characteristic cords of cells separated by a few "chicken wire" septa (arrow).