CENTRE JEAN PERRIN, ISM / SCIENCE PHOTO LIBRARY CENTRE JEAN PERRIN, ISM / SCIENCE PHOTO LIBRARY
Secondary liver cancer. Coloured computed tomography (CT) scan (left), positron emission tomography (PET) scan (centre) and combined CT and PET scan (right) of an axial section through a patient's torso, showing liver cancer (bright, centre) that has spread (metastasised) from squamous-cell carcinoma (SCC, bright, top) in the right lung. The cancer has also caused central tissue death (necrosis).
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