ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Brain in stroke. Coloured computed tomography (CT) scan of an axial section through the brain of a patient, showing a large hyperdense region (dark, upper right) in the left cerebral hemisphere following a recent superficial and deep cerebral artery stroke. This stroke has caused right hemiplegia - complete paralysis of the right side of the body.
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