Table 3 Lesion characteristics and most common lesion location and histology
Variable (N) | N (%) |
|---|---|
All lesions – lesion type (11154) |  |
      Arterio-venous malformation | 92 (0.8%) |
      Benign tumor | 1218 (10.9%) |
      Malignant primary tumor | 3668 (32.9%) |
      Metastatic tumor | 4639 (41.6%) |
      Recurrent primary tumor | 1050 (9.4%) |
      Functional disease | 485 (4.3%) |
Intracranial lesions (5441) | Â |
    Benign lesions | 1176 (21.6%) |
      Acoustic neuroma | 321 (5.9%) |
      Meningioma | 360 (6.7%) |
      Benign, NOS | 155 (2.9%) |
      Pituitary adenoma | 88 (1.6%) |
    Primary malignant | 226 (4.2%) |
      Astrocytoma | 29 (0.6%) |
      Glioblastoma | 76 (1.4%) |
      Glioma | 8 (0.2%) |
      Meningioma, malignant | 44 (0.8%) |
    Metastatic | 2917 (53.6%) |
      Brain/cranial nerve/spinal cord | 2867 (52.7%) |
      Meninges | 4 (0.8%) |
    Recurrent | 263 (4.8%) |
      Astrocytoma | 19 (0.4%) |
      Glioblastoma | 87 (1.6%) |
      Glioma | 8 (0.2%) |
      Pituitary adenoma | 16 (0.3%) |
    Functional disease | 485 (9%) |
      Trigeminal neuralgia – typical | 364 (6.7%) |
      Trigeminal neuralgia – atypical | 99 (1.8%) |
      Trigeminal neuralgia- MS | 13 (0.3%) |
Extracranial lesions (6379) | Â |
    Benign | 42 (0.7%) |
      Head & neck | 17 (0.3%) |
      Bones/joints | 9 (0.2%) |
      Other nervous system | 6 (0.1%) |
    Primary malignant | 3442 (53.9%) |
      Lung/bronchus | 1973 (30.9%) |
      Prostate | 1165 (18.3%) |
      Pancreas | 108 (1.7%) |
      Liver | 50 (0.8%) |
    Metastatic | 1722 (27%) |
      Lung/bronchus | 601 (9.4%) |
      Bones/joints | 338 (5.3%) |
      Liver | 331 (5.2%) |
      Lymph node | 150 (2.4%) |
    Recurrent | 787 (12.4%) |
      Lung/bronchus | 520 (8.2%) |
      Head and neck | 98 (1.5%) |
      Gynecological | 25 (0.4%) |
      Pancreas | 21 (0.3%) |