Table 2.
Bilateral advanced (group D or E) intraocular retinoblastoma: tumor features and classification
| Feature | n (%) |
|---|---|
| n = 144 | |
| Orbital pseudocellulitis | 3 (2) |
| Megalocornea | 13 (9) |
| Secondary glaucoma | 21 (15) |
| Pseudohypopyon | 3 (2) |
| Hyphema | 5 (3) |
| Iris neovascularization | 23 (16) |
| Ectropion uveae | 17 (12) |
| International Classification of Retinoblastoma (Philadelphia version) | |
| Group D | 60 (42) |
| Group E | 84 (58) |
| Bilateral group D | 12 (8) |
| Bilateral group E | 24 (17) |
| Combination of groups D and E | 36 (25) |
| International Classification of Retinoblastoma (Children’s Hospital Los Angeles version) | |
| Group D | 84 (58) |
| Group E | 60 (42) |
| Bilateral group D | 22 (15) |
| Bilateral group E | 10 (7) |
| Combination of groups D and E | 40 (28) |
| 8th edition AJCC | |
| T2a | 28 (19) |
| T2b | 88 (61) |
| T3a | 3 (2) |
| T3b | 1 (< 1) |
| T3c | 17 (12) |
| T3d | 4 (3) |
| T3e | 3 (2) |
| Bilateral T2 | 45 (31) |
| Bilateral T3 | 1 (< 1) |
| Combination of T2 and T3 | 26 (18) |
AJCC American Joint Committee Classification