Table 2. Summary of radiological abnormalities recorded on diagnostic brain scan when the tumor was first identified radiologically prior to neurosurgical intervention.
| Radiological abnormalities | Case number | |||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6* | 7 | 8 | |
| Size of T2-weighted lesion (cm) | 4 × 1.5 × 2 | 6 × 3 4.5 | 5 × 4.5 × 4 | 3 × 2 × 2 | 3.5 × 2.5 × 2 | 2 × 2 × 2 | 4 × 4 × 4 | 3 × 2 × 2 |
| Enhancement with Gd | No | No | No | No | No | Yes | Yes | Yes |
| Minimum ADC value of solid component (× 10–3 mm2/s) | N/A | N/A | 1.4 | 2.1 | 1.1 | 0.5 | 1.3 | N/A |
| Location – lobe | Frontal | Frontal | Frontal | Temporal | Temporal | Occipital | Frontal | Thalamus |
| Calcification | No | No | No | No | No | No | No | No |
*Metastatic lung cancer – all other tumors are WHO grade II gliomas. Gd = gadolinium; ADC = apparent diffusion coefficient.