Fig. 2

Fatty mass type. A 55-year-old woman with invasive ductal carcinoma. Breast magnetic resonance imaging (MRI) before cryoablation (a, arrowhead) showing a solid nodule of diameter 8 mm in the inner-upper quadrant of the right breast. The pre-cryoablation CT part of PET/CT (b, arrowhead) does not clearly show the breast cancer lesion identified by MRI. The pre-cryoablation fusion image of PET/CT (c, arrowhead) shows subtle FDG uptake (SUVmax, 0.89). On the CT portion (d, arrow) and (e, arrow) of the fusion image of PET/CT that was obtained 36 months after cryoablation, the treated area shows a focal fatty area surrounded by a rim like soft tissue density with subtle FDG uptake (SUVmax, 0.82). The calcification at the center of the treated area was present prior to cryoablation