Table 1.
Patients’ characteristics
| Characteristic | No. of patients (%) |
|---|---|
| Age (yr) | |
| Median | 62 |
| Mean (range) | 62.58 (44-85) |
| Sex | |
| Male | 14 (58.3) |
| Female | 10 (41.7) |
| Initial symptom | |
| Visual acuity decreasing | 9 (37.5) |
| Ocular discomfort | 4 (16.7) |
| Vitreous floaters | 5 (20.8) |
| Visual field defect | 3 (12.5) |
| Incidental finding on regular check-ups | 2 (8.3) |
| Both decreased of visual acuity and visual field defect | 1 (4.2) |
| ECOG | |
| 0 | 22 (91.7) |
| 1 | 2 (8.3) |
| Nevus | |
| Negative | 24 (100) |
| Positive | 0 |
| Involved eye | |
| Right eye | 7 (29.2) |
| Left eye | 17 (70.8) |
| Location | |
| Pre-equatorial | 5 (20.8) |
| Equatorial | 7 (29.2) |
| Retro-equatorial | 12 (50.0) |
| Growth pattern | |
| Dome | 15 (62.5) |
| Mushroom | 7 (29.2) |
| Diffuse | 2 (8.3) |
| Basal tumor diameter, median (range, mm) | 11 (4.4-16) |
| Tumor thickness, median (range, mm) | 8 (2-13) |
| Ciliary body involvement | |
| Negative | 22 (91.7) |
| Positive | 2 (8.3) |
| Extraocular spread | |
| Negative | 24 (100) |
| Positive | 0 |
| Optic disc involvement | |
| Negative | 24 (100) |
| Positive | 0 |
| Distance from posterior tumor border to fovea (ODD) | |
| ≤ 2 | 7 (29.2) |
| > 2 | 17 (70.8) |
| Distance from posterior tumor border to optic disc (ODD) | |
| ≤ 2 | 2 (8.3) |
| > 2 | 22 (91.7) |
| Initial retinal detachment | |
| Negative | 16 (66.7) |
| Positive | 8 (33.3) |
| Intraocular hemorrhage | |
| Negative | 16 (66.7) |
| Positive | 8 (33.3) |
| AJCC staginga) | |
| I | 6 (25.0) |
| II | 16 (66.7) |
| III | 2 (8.3) |
| IV | 0 |
| Tumor size categoryb) | |
| Small | 3 (12.5) |
| Medium | 5 (20.8) |
| Large | 15 (62.5) |
| Extra large | 1 (4.2) |
ECOG, Eastern Cooperative Oncology Group; ODD, optic disc diameter.
a)
The American Joint Committee on Cancer (AJCC) classification seventh edition,
b)
By Egger et al. [7]; small: diameter ≤ 10 mm and thickness ≤ 3 mm, medium: 10 mm < diameter ≤ 15 mm and/or 3 mm < thickness ≤ 5 mm, large: 15 mm < diameter ≤ 20 mm and/or 5 mm < thickness ≤ 10 mm, extra large: diameter > 20 mm and/or thickness > 10 mm.