PET/CT with 18F-Fluoroethyl-L-Tyrosine in Diagnosis of Radiation Necrosis of the Temporal Lobe after Radiotherapy for Nasopharyngeal Carcinoma (Clinical Case)

Abstract

Clinical case of the patient with nasopharyngeal carcinomaafter stereotactic radiosurgical treatment for the persistent disease after chemoradiotherapyare presented. The diagnostic data of PET/CTwith 18F-Fluoroethyl-Ltyrosine (18F-FET)and MRI with intravenous contrastof head and neck were included in analysis. There was analyzeda clinical case of differential diagnosis of changes in thetemporal lobe of the brain after stereotactic radiation therapy of nasopharyngeal carcinoma using PET/CT with 18F-FET. Identified high diagnostic accuracy in the differential diagnosis of delayed changes in the brain (tumor or radiation necrosis) after radiation therapy ofnasopharyngeal carcinoma.