Clinical Characteristics of Patient Population
| Characteristic | Female (breast cancer) | Male (prostate cancer) |
| Number of patients | 15 | 15 |
| Mean age ± SD (y) | 54.1 ± 12.6 | 68.3 ± 9.4 |
| Clinical stage at initial diagnosis | ||
| II | 0 | 5 |
| III | 8 | 4 |
| IV | 7 | 6 |
| Indication for bone scintigraphy | ||
| Initial treatment strategy | 3 | 1 |
| Subsequent treatment strategy | 12 | 14 |
| Prostate-specific antigen | ||
| Mean ± SD | 8.6 ± 10.1 | |
| Range | 0.1–30.3 | |
| Pathologic findings | ||
| ER+, PR+, Her2− | 5 | — |
| ER+, PR+, Her2+ | 4 | — |
| ER+, PR−, Her2+ | 2 | — |
| ER−, PR−, Her2− | 2 | — |
| ER−, PR−, Her2+ | 2 | — |
ER = estrogen receptor; PR = progesterone receptor; Her2 = human epidermal receptor 2.