Brain Tumors

Brain Tumors

Signs and Symptoms
Diagnosis
Treatment

Diagnosis

Diagnosis of a brain tumor depends mostly on the types of cells in which the tumor begins and the tumor location. Diagnostic procedures for a brain tumor may include the following:

• Neurological Exam Your child's doctor will test reflexes, muscle strength, eye and mouth movement, coordination and alertness.

• Computed Tomography Scan (CT or CAT scan) This is a diagnostic imaging procedure that uses a combination of X-rays and computer technology to produce cross-sectional images, both horizontally and vertically, of the body. A CT scan shows detailed images of the body, including the bones, muscles, fat and organs. CT scans are more detailed than general X-rays.

• Magnetic Resonance Imaging (MRI) This is a diagnostic procedure that uses a combination of large magnets, radiofrequencies and a computer to produce detailed images of organs and structures within the body. An MRI may require sedation or anesthesia for young children.

• X-ray X-rays use invisible electromagnetic energy beams to produce images of internal tissues, bones and organs onto film.

• Bone Scan These pictures or X-rays are taken of the bone after a dye has been injected that is absorbed by bone tissue. These are used to detect tumors and bone abnormalities.

• Lumbar Puncture or Spinal Tap A special needle is placed into the lower back in the spinal canal, the area around the spinal cord. A small amount of cerebral spinal fluid (CSF) is removed for testing. CSF is the fluid that bathes the brain and spinal cord. A lumbar puncture may require sedation or anesthesia for young children.

Reviewed by health care specialists at UCSF Children's Hospital.
Last updated May 8, 2007