Table 1.
Clinicopathologic Data from 43 Patients Enucleated for Retinoblastoma
| Clinicopathologic Features | n = 43 |
|---|---|
| Gender | |
| Male | 20 (47%) |
| Female | 23 (53%) |
| Age (months)a | 21 (2 – 53) |
| Laterality | |
| Unilateral | 34 (79%) |
| Bilateral | 9 (21%) |
| Tumor size (cm)a | 1.4 (0.7 – 1.8) |
| Histologic grade | |
| Well differentiated | 12 (28%) |
| Moderately differentiated | 11 (25%) |
| Poorly differentiated | 15 (35%) |
| Undifferentiated | 5 (12%) |
| Optic nerve invasion | |
| No invasion | 21 (49%) |
| Anterior to lamina cribrosa | 10 (23%) |
| At lamina cribrosa | 8 (19%) |
| Posterior to lamina cribrosa | 4 (9%) |
| Choroidal invasion | |
| No invasion | 34 (79%) |
| Focal | 4 (9%) |
| Massive | 5 (12%) |
a
Mean listed with the range shown in parentheses.