Table 4.

Lesion identification on imaging work-up prior to and after F-18 FDG PET/CT studies and comparison to reference standard and clinical follow-up.

Patient (N = 15)	Lesion identification on imaging work-up prior to F-18 FDG PET/CT	Additional findings		Reference Standard	Follow up
		sTSH F-18 FDG PET/CT	eTSH F-18 FDG PET/CT
1	Lung	DLn Lung Bone	DLn Lung Bone	DLn Lung Bone	Progression
2	Lung	Lung	CLn Lung	DLn Lung	Progression
3	Lung	CLn Lung Bone	CLn Lung Bone Other	CLn Lung Bone	Progression
4	Lung	DLn Lung	CLn DLn Lung	LR CLn DLn Lung	Progression
5	CLn Lung	LR CLn Lung Bone	LR CLn Lung Bone	LR CLn Lung Bone	Progression
6	NI	NI	NI	NI	Stable
7	NI	Lung	CLn Lung	CLn Lung	Progression
8	CLn	CLn Lung	CLn DLn Lung	CLn DLn Lung	Progression
9	NI	NI	NI	CLn	Stable
10	NI	NI	NI	CLn	Progression
11	NI	CLn	CLn	LR CLn	Progression
12	NI	CLn	CLn	CLn	Progression
13	NI	CLn DLn	CLn DLn	LR CLn DLn	Progression
14	NI	LR	LR	LR CLn	Progression
15	NI	CLn Other	CLn Other	CLn	Progression

LR: Local Recurrence; CLn = Cervical Lymph node metastases; DLn = Distant Lymph node metastases; NI = Not identified.

sTSH = suppressed TSH; eTSH = elevated TSH.