Brain abscess
Disease Information
Tests
How does a doctor know that it's a brain abscess?
During the physical examination, your child's doctor will obtain a complete medical history of your child. In addition to urine and stool tests and a measure of your head's circumference, a doctor may do any of these diagnostic tests:
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X-ray
- uses invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs onto film.
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magnetic resonance imaging
- also called an MRI
- uses a combination of large magnets, radiofrequencies, and a computer to produce detailed images of organs and structures within the body. I
- Intravenous (IV) contrast agents may be given during the scan to better see the abscess
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computerized tomography scan
- also called a CT or CAT scan
- uses a combination of x-rays and computer technology to shows detailed images of any part of the body, including the bones, muscles, fat, and organs.
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sputum culture
- tests the stuff coughed up from the lungs and into the mouth.
- helps to see if an infection is present
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lumbar puncture
- also called a spinal tap
- a special needle is placed into the lower back, into the spinal canal.
- measures the pressure in the spinal canal and brain
- a small amount of cerebral spinal fluid (CSF) can be removed and sent for testing to determine if there is an infection or other problems.
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Electroencephalogram
- also called an EEG
- records the brain's continuous, electrical activity by means of electrodes attached to your scalp
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intracranial pressure monitoring
- also called ICP
- measures the pressure inside of your head


