DEPT. OF NUCLEAR MEDICINE, CHARING CROSS HOSPITAL / SCIENCE PHOTO LIBRARY DEPT. OF NUCLEAR MEDICINE, CHARING CROSS HOSPITAL / SCIENCE PHOTO LIBRARY
Migraine. Coloured Single Photon Emission Computed Tomography (SPECT) scan of the brain in a patient during a migraine attack. This is a horizontal scan through the brain. Colour-coding is: high brain activity (red, yellow); low activity (green, blue). At lower left is an area (green) of reduced blood flow and low brain activity during migraine. Migraine is a severe headache that typically affects one side of the head, and may cause nausea and vomiting. Different brain regions may be involved. However, pain of a migraine does not come from the brain but from membranes around the brain, and from the scalp.
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