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. Author manuscript; available in PMC: 2022 Aug 1.
Published in final edited form as: Ophthalmology. 2022 Apr 30;129(8):933–945. doi: 10.1016/j.ophtha.2022.04.022

Table 2.

Patient-Level (Worse Eye) 8th Edition AJCC cT Category of Anatomic Extent in 1841 Patients with Retinoblastoma by Treatment Modality

AJCC Clinical Tumor Category


cT2a cT2b cT3a cT3b cT3c cT3d cT3e Total
Treatment modality Primary enucleation Count 110 410   13 123 284 161 27 1128
% treatment modality   9.8 36.3   1.2 10.9 25.2 14.3   2.4 100.0
% AJCC subcategory 56.1 50.4 59.1 74.1 73.0 79.3 52.9   61.3
% total   6.0 22.3   0.7   6.7 15.4   8.7   1.5   61.3
Systemic chemotherapy followed by secondary enucleation Count   32 164 5  19  61  23  11  315
% treatment modality 10.2 52.1   1.6   6.0 19.4   7.3   3.5 100.0
% AJCC subcategory 16.3 20.1 22.7 11.4 15.7 11.3 21.6   17.1
% total   1.7   8.9   0.3   1.0   3.3   1.2   0.6   17.1
Systemic chemotherapy and eye salvage Count  54 240 4  24   44  19  13  398
% treatment modality 13.6 60.3   1.0   6.0 11.1   4.8   3.3 100.0
% AJCC subcategory 27.6 29.5 18.2 14.5 11.3   9.4 25.5   21.6
% total   2.9 13.0   0.2   1.3   2.4   1.0   0.7   21.6
Total Count 196  814  22 166 389 203  51  1841
% total 10.6 44.2  1.2  9.0 21.1 11.0   2.8  100.0
Patient-Level (Worse Eye) AJCC-OOTF Size Group in 1416 Patients with Retinoblastoma by Treatment Modality

AJCC-OOTF Size Group
1: < 50% Globe Involved 2: > 50% and < 2/3 Globe Involved 3: > 2/3 of Globe Involved 4: Diffuse Infiltrating Retinoblastoma Total
Treatment modality Primary enucleation Count 141 175 507 107 930
% treatment modality 15.2 18.8 54.5 11.5 100.0
% AJCC-OOTF Size Group 48.8 54.9 75.0 81.1 65.7
% total 10.0 12.4 35.8 7.6 65.7
Systemic chemotherapy followed by secondary enucleation Count 57 55 96 8 216
% treatment modality 26.4 25.5 44.4 3.7 100.0
% AJCC-OOTF Size Group 19.7 17.2 14.2 6.1 15.3
% total 4.0 3.9 6.8 0.6 15.3
Systemic chemotherapy and eye salvage Count 91 89 73 17 270
% treatment modality 33.7 33.0 27.0 6.3 100.0
% AJCC-OOTF Size Group 31.5 27.9 10.8 12.9 19.1
% total 6.4 6.3 5.2 1.2 19.1
Total Count 289 319 676 132 1416
% total 20.4 22.5 47.7 9.3 100.0

AJCC = American Joint Committee on Cancer; c = clinical; OOTF = Ophthalmic Oncology Task Force; T = tumor.