Primitive neuroectodermal tumors (PNET)
How is a PNET diagnosed?
Diagnostic procedure for PNET may include:
- physical examination and history
- computerized tomography scan (also called a CT or CAT scan) - a diagnostic imaging procedure that uses a combination of x-rays and computer technology to produce cross-sectional images (often called slices), both horizontally and vertically, of the body. CT scans are more detailed than general x-rays.
- magnetic resonance imaging (MRI) - 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.
For PNET, MRIs of the brain and spine are usually done. Since these tumors are known to spread via the cerebrospinal fluid (CSF), there is a high chance that they will invade other tissues in the body, and it is essential that your child have both a spine and brain MRI.