Epilepsy Case 01

Clinical History
An 11-year-old boy, diagnosed with epilepsy at age 7, had been treated with medications for 4 years. During the last year, he had continued to have seizures, even with a change in antiseizure medications. A PET scan was ordered to evaluate for the possible source of the seizure. A previous MRI scan had shown no structural abnormality.

Imaging Findings
STATED REASON FOR REQUEST: Evaluation of 11-year-old boy with epilepsy

PET FINDINGS: The PET scan showed moderate-to-severe hypometabolism, or lower than normal glucose utilization, in the right parietal, posterior, frontal, occipital, and temporal lobes (arrows) in the interictal period between seizures.

The PET scan showed epileptogenic tissue in the localized brain. Surgery was performed to resect the dysfunctional tissue and the child, after surgery, was seizure free.

Data by permission of the Society of Nuclear Medicine

Gambhir SS, Czernin J, Schwimmer J, et al. A Tabulated Summary of the FDG PET Literature. J Nucl Med 2001; 42(5 Suppl); 74S-75S, Figure 22.

* Any of the protocols presented herein are for informational purposes and are not meant to substitute for clinician judgment in how best to use any medical devices. It is the clinician that makes all diagnostic determinations based upon education, learning and experience.