The Diagnostic Value of ¹⁸F-FDG PET/CT in Association with Serum Tumor Marker Assays in Breast Cancer Recurrence and Metastasis

Table 1

Suspected and confirmed malignant foci of CITs and PET/CT.

	Malignant lesions detected by		Malignant lesions detected by
Locations	CITs		PET/CT		Total confirmed malignancy^*
	Suspected	Confirmed	Suspected	Confirmed
Local recurrence	2	2	5	4	4
Lung	7	6	9	8	8
Liver	0	0	1	1	1
Brain	1	1	1	1	1
Lymph nodes	3	1	22	17	18
Mediastinal	0	0	17	13	14
Axilla	3	1	4	3	3
Others	0	0	1	1	1
Bone	34	18	97	91	101
Ribs	8	5	27	24	28
Pelvis	5	5	27	27	30
Spine	18	5	29	26	29
Extremities	2	2	12	12	12
Scapula	1	1	2	2	2

Confirmation of positive cases was done based on recurrence of cancer as indicated by CITs, pathology, and/or clinical follow-up. Confirmation of negative cases was done based on absence of abnormality as indicated by CITs, repeated PET/CT imaging as well as clinical follow-up for a period of 6 months.