Fig. 2
Case comparison according to PET parameters between two breast cancer patients with identical pathologic prognostic stage (IB). a18F-FDG PET/CT scan of a 46 year-old female revealed right breast malignancy with intense FDG uptake (SUVmax 13.6, SUVpeak 10.9, MTV 5.9 cm3 and TLR 7.2). Right axillary lymph node was pathologically negative for malignancy. b Sixteen months after modified radical mastectomy, a small nodule was seen in left upper lung (c) which grew in size in 2 months, suggestive of metastasis. d A 66 year-old patient underwent PET/CT for breast cancer staging and it showed mild FDG uptake in left breast with SUVmax 3.2, SUVpeak 1.9, MTV 0.1 cm3, and TLR 1.5. She had no evidence of recurrence during 37 months of follow-up