Abstract
Purpose
To investigate the courses leading to bilateral enucleation in bilateral retinoblastoma patients.
Methods
Medical records of 5 bilateral retinoblastoma patients who underwent bilateral enucleation were reviewed for patient information, history, change of tumor state during the treatment and the cause of bilateral enucleation.
Results
Out of 48 bilateral retinoblastoma patients, both eyes were saved in 6 children, 1 eye was saved in 37 children, and the remaining 5 children lost both eyes. All patients who underwent bilateral enucleation were female and had no family history of retinoblastoma. At diagnosis, 3 children were 4 months old and the remaining 2 patients were 1 year and 1.5 years old each. Out of 10 eyes, 8 eyes were in Reese Ellsworth group V and the remaining 2 eyes were in group III. The initial treatment was enucleation of 1 eye followed by chemotherapy in 3 patients, and chemotherapy alone in 2 patients. Additional treatment included laser photocoagulation, cryotherapy, external beam radiation therapy and proton beam irradiation. Vitreous seeding, development of new tumors, and increase in tumor size despite of intensive, conservative treatment resulted in second enucleation.
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Table 1.
Case | Sex/Age | FHx∗ | R/L | Chief Complaint | Time to Dx† |
---|---|---|---|---|---|
1 | F/18 m | no | R | Found on examination | 2 w ‡ |
L | Conjunctival injection and lid edema | ||||
2 | F/4 m | no | R | Leucocoria | 3 m § |
L | Leucocoria | ||||
3 | F/4 m | no | R | Found on examination | 1 w |
L | Leucocoria | ||||
4 | F/4 m∏ | no | R | Esodeviation | 2 w |
L | Esodeviation | ||||
5 | F/12 m | no | R | Poor fixation | 3 mo |
L | Poor fixation |
Table 2.
Case | R/L | Mass on funduscopy | R-E∗ | Calcification | Brain MRI | Bone scan | Prim Tx† |
---|---|---|---|---|---|---|---|
1 | R | 2 (4∼6DD‡, 1.5DD) Vit. seeding (+) | Vb | (+) | (−) | (−) | Chemo§ |
L | Full vol. of vit. cavity | Va | (+) | En∏ | |||
2 | R | Full vol. of vit. cavity | Va | (+) | En | ||
L | 4 (1∼2DD x 2 (anterior to equator, 4∼5DD, 8DD) | IIIa | (−) | (−) | (−) | Chemo | |
3 | R | Larger than 10DD | IIIb | (+) | Chemo, L# | ||
L | 1/2 vol. of vit cavity | Va | (+) | (−) | (−) | En | |
4 | R | Full vol. of vit cavity | Va | Not done | Chemo | ||
L | Full vol. of vit cavity | Va | Not done | (−) | (−) | Chemo | |
5 | R | 1/2 vol. of vit cavity | Va | (+) | Chemo | ||
L | 1/2 vol. of vit cavity | Va | (+) | (−) | (−) | Chemo |
Table 3.
Case | Chemotherapy (cycles) | Local Tx | RadioTx | Tx response | Outcome | ||
---|---|---|---|---|---|---|---|
1/R | AΠ | A | B | C∗ x2 | EBR§ x22 | Vit seeding ↑ | Enucleation |
12 | 7 | 1 | L† x1 | New, multiple | |||
T‡ x1 | tumors | ||||||
2/L | A | L x1 | Vit seeding ↑ | Enucleation | |||
6 | New tumors | ||||||
Size ↑ | |||||||
3/R | A | B# | A | C x1 | Size ↑ | Enucleation | |
14 | 10 | 4 | L x5 | ||||
4/R | A | A | C x1 | Proton | Size ↑ | Enucleation | |
13 | 2 | beam | |||||
4/L | A | A | Size ↑ | Enucleation | |||
13 | 2 | New tumors | |||||
5/R | A | B | A | EBR x25 | Size ↑ | Enucleation | |
8 | 1 | 10 | |||||
5/L | A | B | A | C x1 | EBR x25 | New, multiple | Enucleation |
8 | 1 | 10 | L x1 | tumors |
Table 4.
Case | Interval btn∗ enucleations | Reason of 2nd eye enucleation | F/U† brain MRI & bone scan | F/U after 2nd enucleation |
---|---|---|---|---|
1 | 22 m | Vit seeding ↑ | (−)‡ | 16 m |
Multiple new tumors (+) | ||||
2 | 8 m | Multiple new tumors (+) | (−) | 19 m |
Vit seeding ↑ | ||||
Size ↑ | ||||
3 | 55 m | Size ↑ | (−) | 29 m |
4 | 14 m | Size ↑ | (−) | 30 m |
5 | 8 m | Size ↑ | (−) | 22 m |