BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY BIOPHOTO ASSOCIATES / SCIENCE PHOTO LIBRARY
Kidney cancer. Light micrograph of a section through a malignant (cancerous) tumour in the pelvicalyceal system of the kidney. This is a transitional cell carcinoma (TCC). TCCs are malignant tumours that arise from the transitional epithelium that lines the pelvicalyceal system, urethra, ureters and bladder. TCCs can be either well differentiated (seen here), or poorly differentiated. Well differentiated tumours commonly arise as frond-like papillary outgrowths (dark pink) from the epithelial surface (white, far left).
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