Table 1.
Distribution of PAs and outcomes by location in cohort. One hundred forty‐seven cases of PA were collected since 1980, the majority of which had corresponding outcome data available. Pooled together, cerebellar and cortical tumors had a lower rate of adverse outcomes compared with deep‐seated, midline tumors (P = 0.006 by Mann–Whitney test). Abbreviations: PA = pilocytic astrocytoma; DoD = died of disease.
| Location | Total no. | No. with outcome data | No. with adverse outcome (%) | No. with only local recurrence | No. with disseminated/metastatic tumor | DoD |
|---|---|---|---|---|---|---|
| Cerebellum | 97 | 71 | 12 (16.9) | 10 | 2 | 0 |
| Brainstem/Midbrain | 12 | 12 | 6 (50.0) | 6 | 0 | 0 |
| Hypothalamus | 11 | 9 | 4 (44.4) | 1 | 1 | 2 |
| Thalamus | 10 | 9 | 4 (44.4) | 2 | 1 | 1 |
| Spinal | 9 | 9 | 5 (55.6) | 3 | 2 | 1 |
| Cortex | 7 | 7 | 1 (14.3) | 0 | 1 | 1 |
| Basal ganglia | 1 | 1 | 0 (0.0) | 0 | 0 | 0 |
| Total | 147 | 118 | 32 (27.1) | 22 | 7 | 5 |