Table 1.
Patient characteristics and frequencies of abnormal sensations experienced
| Characteristics | Number of cases | Abnormal olfactory sensations | Abnormal light sensations |
|---|---|---|---|
| 191 | 7 (3.7) | 10 (5.2) | |
| Age median (range) | 46 (4–88) | ||
| <20 years old | 60 | 6 (10) | 1 (1.6) |
| >20 years old | 131 | 1 (0.8) | 9 (6.9) |
| Sex | |||
| Male | 101 | 5 (5.0) | 3 (3) |
| Female | 90 | 2 (2.2) | 7 (7.7) |
| Primary disease | |||
| Gliomas and glioblastoma | 102 | 0 (0) | 6 (5.9) |
| Ependymoma | 11 | 2 (18) | 0 (0) |
| Medulloblastoma | 17 | 0 (0) | 0 (0) |
| Germinoma | 23 | 4 (17) | 1 (4.3) |
| Meningioma | 16 | 0 (0) | 1 (6.2) |
| Pituitary adenoma | 7 | 1 (14) | 2 (29) |
| Others | 15 | 0 (0) | 0 (0) |
| Site of lesions | |||
| Cerebrum | |||
| Frontal lobe | 35 | 0 (0) | 1 (2.9) |
| Parietal lobe | 23 | 0 (0) | 2 (8.7) |
| Occipital lobe | 9 | 0 (0) | 0 (0) |
| Temporal lobe | 42 | 1 (2.3) | 4 (9.5) |
| Lateral ventricle | 4 | 0 (0) | 0 (0) |
| Basal ganglia and/or hypothalamus | 6 | 1 (17) | 0 (0) |
| Pineal body | 15 | 3 (20) | 1 (6.7) |
| Posterior fossa | 40 | 1 (2.5) | 0 (0) |
| Pituitary gland or suprasellar | 16 | 1 (6.2) | 2 (13) |
| Others | 1 | 0 (0) | 0 (0) |
| Method for confirmation of pathological diagnosis | |||
| Craniotomy and tumorectomy | 154 | 3 (1.9) | 7 (4.5) |
| Tumorectomy through the nose | 7 | 1 (14) | 2 (29) |
| Craniotomy and biopsy | 1 | 1 (13) | 0 (0) |
| Endoscopic biopsy | 15 | 2 (13) | 1 (6.7) |
| Unexamined | 6 | 0 (0) | 0 (0) |
| Radiation therapy technique | |||
| Conventional | 33 | 1 (3.0) | 0 (0) |
| 3D-CRT | 90 | 2 (2.2) | 1 (1.1) |
| IMRT | 67 | 4 (6.0) | 8 (12) |
| SRT | 1 | 0 (0) | 1 (100) |
Values in brackets are percentages. 3D-CRT = 3D conformal radiation therapy, IMRT = intensity-modulated radiation therapy, SRT = stereotactic radiation therapy.