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Stroke, CT brain scan

Stroke, CT brain scan

M136/0345

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Credit

ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY

Caption

Stroke. Coloured computed tomography (CT) scans of an axial section through the head of a 62-year-old patient with a stroke. The front of the brain is at top and the right hemisphere is seen at left. A large infarct (dead tissue, dark patch at right) is seen in the sylvian fissure of the left hemisphere. The infarct is a result of ischaemia, a lack of blood flow caused by a blood vessel obstruction. The blockage may be due to a thrombus (blood clot) or embolism (air bubble or loose blood clot). Strokes can be instantly fatal, or may pass unnoticed. Symptoms can include muscle weakness, behavioural changes or paralysis.

Release details

Model release not required. Property release not required.

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