DR M O HABERT, PITIE-SALPETRIERE, ISM / SCIENCE PHOTO LIBRARY DR M O HABERT, PITIE-SALPETRIERE, ISM / SCIENCE PHOTO LIBRARY
Pick's disease. Coloured single photon emission computed tomography (SPECT) scans of axial sections through the brain of a patient with Pick's disease. This is a deterioration of the frontal and temporal lobes. It causes behavioural changes, including impulsive, apathetic and inappropriate behaviour, and language difficulties, such as difficulty speaking and understanding speech. The scans show areas of low blood flow (blue and black) around the frontal and temporal (sides of the brain) lobes. There is no cure for the condition. SPECT scans use gamma cameras to detect radioactive tracers, injected into the blood, that accumulate in areas of high metabolic activity.
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