ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Kidney tumour. Coloured computed tomography (CT) scan of a section through the abdomen of a 62-year-old patient, showing necrosis (death) of tissue in the right kidney, suggestive of neoplasia (abnormal growth or division of cells). Neoplasia normally causes a lump, or tumour, (neoplasm) and may be malignant (cancerous), pre-malignant (pre-cancerous), or benign (non-cancerous).
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