OUELLETTE & THEROUX, PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY OUELLETTE & THEROUX, PUBLIPHOTO DIFFUSION / SCIENCE PHOTO LIBRARY
Lymphoma cancer. Coloured Single Photon Emission Computed Tomography (SPECT) scan of the body and head of a patient suffering lymphoma. Clockwise from top left are: anterior pelvis; anterior abdomen; anterior head and neck; posterior chest. Areas coloured yellow/red are lymph gland lesions affected by lymphoma. The neck is widely affected. Unless lymphoma is controlled, spread of this disease progressively impairs the immune system leading to death from infection. Treatment is usually by chemotherapy. SPECT scanning involves a radioactive tracer (here Gallium 67) injected into the blood and detected by a gamma camera.
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