Table 1. Distribution of primary intracranial tumors in Miyazaki Prefecture between 2007 and 2016.
| Tumor type | Number of cases (%) | Crude incidence/100000/year | Histological confirmation rate (%) | Asymptomatic ratio (%) | ||
|---|---|---|---|---|---|---|
| Total | Male | Female | ||||
| Meningioma | 886 (46.3) | 218 (30.3) | 668 (55.9) | 7.86 | 39.1 | 66.9 |
| Glioma | 329 (17.2) | 180 (24.8) | 149 (12.5) | 2.89 | 81.3 | 8 |
| Pituitary adenoma | 250 (13.1) | 109 (15.2) | 141 (11.8) | 2.22 | 46.8 | 40.4 |
| Schwannoma | 157 (8.2) | 68 (9.5) | 89 (7.5) | 1.4 | 63.1 | 17.2 |
| Malignant lymphoma | 72 (3.8) | 43 (6) | 29 (2.4) | 0.64 | 66.7 | 1.4 |
| Rathke’s cyst | 55 (2.9) | 18 (2.5) | 37 (3.1) | 0.49 | 27.3 | 59.3 |
| Hemangioblastoma | 28 (1.5) | 16 (2.2) | 12 (1) | 0.25 | 75 | 25 |
| Craniopharyngioma | 25 (1.3) | 10 (1.4) | 15 (1.3) | 0.22 | 64 | 20 |
| Germ cell tumor | 16 (0.8) | 14 (1.9) | 2 (0.2) | 0.14 | 93.8 | 0 |
| Epidermoid | 15 (0.8) | 8 (1.1) | 7 (0.6) | 0.13 | 60 | 46.2 |
| Medulloblastoma | 11 (0.6) | 4 (0.5) | 7 (0.6) | 0.1 | 100 | 0 |
| Others | 71 (3.7) | 33 (4.6) | 38 (3.1) | 0.63 | 33.8 | 54.9 |
| Total | 1915 (100) | 721 (100) | 1194 (100) | 16.97 | 52 | 40.1 |