¹⁸F-FDG Uptake Characteristics in Differentiating Benign from Malignant Nasopharyngeal Lesions in Children

Table 2

Clinical features and characteristics of ¹⁸F-FDG PET/CT in three children with nasopharyngeal malignancy.

Patient number	Age (y)	Sex	Diagnosis at PET scan	PET/CT findings	Results of follow-up
1	10	M	Suspected neurogenic tumors by biopsy of left cervical lymph nodes	Diffusely increased ^18F-FDG uptake in nasopharynx (SUV, 18), retropharyngeal space, and bilateral cervical lymph nodes; focal uptake in spleen	NPC
2	5	F	Liver multiple metastases of unknown origin	Inhomogeneously increased ^18F-FDG uptake with irregular thickening in left nasopharynx (SUV, 8.2); multiple liver and bone metastases	NPC
3	6	M	Burkitt lymphoma, tonsils	Diffusely increased ^18F-FDG uptake in nasopharynx mass (SUV 11) and bilateral cervical lymph nodes	Lymphoma involvement of nasopharynx