Table 4.
Patient Characteristics of Previously Reported Cases
| Median age at diagnosis (y) | 40 (4–80) |
| Gender | |
| Male | 74% |
| Female | 26% |
| Site of glioblastoma | |
| Temporal | 28% |
| Parietal | 23% |
| Occipital | 15% |
| Frontal | 23% |
| Brainstem | 3% |
| Subcortical | 3% |
| Cerebellum | 2% |
| Hemisphere | 2% |
| Basal ganglia | 1% |
| Thalamic | 0.5% |
| Surgery preceding metastatic diagnosis | |
| Yes | 93% |
| No | 7% |
| Radiation | |
| Yes | 88% |
| No | 12% |
| Chemotherapy | |
| Yes | 20% |
| No | 80% |
| CSF shunt | |
| Yes | 11% |
| No | 89% |
| Site of extracranial metastasis | |
| Bone | 12.4% |
| Lymph node | 11.5% |
| Lung | 10.3% |
| Leptomeninges | 5.7% |
| Soft tissue | 3.8% |
| Liver | 4.1% |
| Dural sinus | 3.8% |
| Surgical site | 2.3% |
| Skin | 2.3% |
| Spinal cord | 1.8% |
| Systemic vasculature | 1.8% |
| Neck | 1.2% |
| Parotid gland | 0.9% |
| Diaphragm | 0.6% |
| Peritoneum | 0.6% |
| Spleen | 0.3% |
| Kidney | 0.6% |
| Pancreas | 0.6% |
| Pericardium | 0.6% |
| Abdominal wall | 0.3% |
| Adrenal gland | 0.3% |
| Arm | 0.3% |
| Bowel | 0.3% |
| Breast | 0.3% |
| Chest wall | 0.3% |
| Heart | 0.3% |
| Mediastinum | 0.3% |
| Mesentery | 0.3% |
| Pleura | 0.3% |
| Pleural fluid | 0.3% |
| Orbit | 0.3% |
| Nasal cavities | 0.3% |
| Muscle | 0.3% |
| Median time from symptom onset to diagnosis | 2 (0-60) |
| Median time from diagnosis to metastasis | 8 (0-84) |
| Median time from metastasis to death | 2.5 (0-30) |
| Median OS | 11 (1–92) |