SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Coloured Magnetic Resonance Imaging (MRI) scan of an axial section through the brain of a 68 year old patient, showing cerebral lacunas (green dots at centre, hyposignals) in the region of the basal nuclei. These lacunas are due to loss of brain tissue caused by blockage (occlusion) of small arteries. The brain appears orange, with eyes at top.
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