Bilateral advanced (group D or E) intraocular retinoblastoma: outcomes in 72 Asian Indian patients

Abstract

Purpose: To study the clinical presentation, treatment, and outcomes of patients with bilateral advanced intraocular retinoblastoma. Methods: Retrospective case series of 72 patients. Results: The mean age at presentation was 19 months. Leukocoria (n = 49, 68%) was the most common presenting complaint. The tumors were classified as groups D (n = 60, 42%) or E (n = 84, 58%) based on the Philadelphia version of International Classification of Retinoblastoma (ICRB); groups D (n = 84, 58%) or E (n = 60, 42%) based on Children’s Hospital Los Angeles version of International Classification of Intraocular Retinoblastoma (ICIoR); T2 (n = 116, 81%) or T3 (n = 28, 19%) based on 8th edition American Joint Committee Classification (AJCC). Systemic chemotherapy (n = 138, 96%) was the most common primary treatment modality. The chance of globe salvage was higher for group D based on ICRB (83%; odds ratio (OR) 7.73; 95% confidence interval (CI) 3.45–17.33) or ICIoR (81%; OR 12.75; 95% CI 5.74–28.34) and T2b (73%; OR 5.19; 95% CI 2.51–10.73) based on AJCC. Over a mean follow-up period of 59 months, tumor recurrence was noted in 42 (29%) eyes and globe salvage was achieved in 83 (58%) eyes. Of the 50 eyes where vision was recorded, vision of 20/200 or better was achieved in 24 (48%) eyes. There were events of leukemia (n = 1, 1%), pinealoblastoma (n = 1, 1%), systemic metastasis (n = 3, 4%), and death (n = 4, 6%) during the follow-up period. Conclusion: Multimodality treatment allows globe salvage (58%) and vision salvage (48%) in eyes with advanced group D and E intraocular retinoblastoma.