Fig. 6.

Osseous metastases without FDG avidity in woman with newly diagnosed lobular breast cancer. a Axial CT and b hybrid FDG PET/CT scans demonstrate multiple small blastic osseous lesions (arrows) that are not FDG-avid. Such findings could be present in non-FDG-avid osseous metastases or in multiple bone islands (e.g., osteopoikilosis). c Coronal T1-weighted MR image demonstrated that the osseous lesions (arrowheads) are new since d a prior MRI that had been performed 3 years earlier for back pain, and thus the lesions are consistent with osseous metastases