BSIP, VEM / SCIENCE PHOTO LIBRARY BSIP, VEM / SCIENCE PHOTO LIBRARY
EEG of herpes patient. Electroencephalograph (EEG) showing the brainwaves of a patient suffering from herpes simplex encephalitis. The six plots represent the tiny electrical impulses that an active brain produces. This condition causes focal periodic spikes, particularly over the temporal lobe, to be seen on an EEG trace. An acute herpes simplex infection can often lead to inflammation of the brain and its surrounding membranes (meningoencephalitis). This may result in severe bleeding and cell death (haemorrhagic necrosis) in the brain. Early diagnosis and treatment with anti-viral medication is essential as the condition has a high mortality rate.
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