Diagnoses of brain tumors in the group with NDN and those with HDNa
| Histology | NDN (n = 81) (%) | HDN (n = 103) (%) |
|---|---|---|
| Anaplastic astrocytoma | 8 (9.9) | 19 (18.4) |
| Astroblastoma | 0 (0.0) | 1 (1.0) |
| Astrocytoma | 4 (4.9) | 14 (13.6) |
| Astrocytoma, pilocytic | 2 (2.5) | 4 (3.9) |
| Desmoplastic nodular medulloblastoma | 0 (0.0) | 1 (1.0) |
| Ependymoma | 4 (4.9) | 5 (4.9) |
| Fibrillary astrocytoma | 1 (1.2) | 4 (3.9) |
| Gemistocytic astrocytoma | 1 (1.2) | 0 (0.0) |
| Giant cell glioblastoma | 1 (1.2) | 0 (0.0) |
| Glioblastoma | 50 (61.7) | 16 (15.5) |
| Glioma, malignant | 4 (4.9) | 7 (6.8) |
| Medulloblastoma | 3 (3.7) | 7 (6.8) |
| Medullomyoblastoma | 0 (0.0) | 1 (1.0) |
| Mixed glioma | 0 (0.0) | 3 (2.9) |
| Myxopapillary ependymoma | 0 (0.0) | 2 (1.9) |
| Oligodendroglioma | 2 (2.5) | 10 (9.7) |
| Oligodendroglioma, anaplastic | 1 (1.2) | 7 (6.8) |
| Pleomorphic xanthoastrocytoma | 0 (0.0) | 1 (1.0) |
| Primitive neuroectodermal tumor | 0 (0.0) | 1 (1.0) |
↵a Note the high percentages of glioblastoma multiforme in the NDN group.