Incidence of exclusive extrapelvic skeletal metastasis in prostate carcinoma on bone scintigraphy

Figure 4 A 76-year-old male, with a newly diagnosed case of carcinoma of the prostate underwent whole body bone scintigraphy. A: ^99mTc methylene diphosphonate Whole body planar images show solitary focal area of increased tracer uptake involving skull bone on the right side; B: Axial computed tomography (CT) and fused single photon emission computed tomography-CT images show tracer localization to the right parietal bone (arrow) with no significant CT abnormality to suggest of metastatic disease involvement. The lesion was thus considered indeterminate.