A 41-year-old man had a right frontal grade I glioma resection 17 years ago. He was tumor free since. However, 1 month ago, he presented with an uncontrollable seizure, which raised the possibility of recurrent tumor. The 18FDG PET/CT brain scan showed increased tracer uptake at the margin of the previous resected tumor, suggesting the possibility of tumor recurrence. However, on a repeat FDG PET brain scan confirmed by electroencephalography monitory as an interictal study, no elevated FDG uptake was revealed at this site. These results indicate that the elevated 18F-FDG activity on the original study was a result of seizure.
From the *Department of Nuclear Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital;
†Beijing Key Laboratory of Molecular Targeted Diagnosis and Therapy in Nuclear Medicine; and
Departments of ‡Radiology, and
§Neurology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing, China.
Received for publication August 20, 2018; revision accepted August 27, 2018.
Conflicts of interest and sources of funding: Supported by the National Natural Science Foundation of China (81771874). None declared to all authors.
Correspondence to: Ruixue Cui, MD, Department of Nuclear Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Wangfujing, Dongcheng District, Beijing 100730, China. E-mail: email@example.com.