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  • Title: Intravenous chemoreduction or intra-arterial chemotherapy for cavitary retinoblastoma: long-term results.
    Author: Rojanaporn D, Kaliki S, Bianciotto CG, Iturralde JC, Say EA, Shields CL.
    Journal: Arch Ophthalmol; 2012 May; 130(5):585-90. PubMed ID: 22652844.
    Abstract:
    OBJECTIVE: To assess the long-term results of chemotherapy for cavitary retinoblastoma. METHODS: Retrospective, nonrandomized, interventional case series of 26 cavitary retinoblastomas in 25 eyes of 24 patients. Retinoblastomas were treated with intravenous chemoreduction and/or intra-arterial chemotherapy. Main outcome measures included tumor control, globe salvage, and metastasis. RESULTS: Of 24 patients with cavitary retinoblastoma, the mean age at diagnosis was 16 months. The mean number of cavitary tumors per eye was 1 (median, 1; range, 1-2), with a mean tumor basal diameter of 13 (median, 13; range, 7-24) mm and mean tumor thickness of 7 (median, 6; range, 3-17) mm. The mean number of cavities per tumor was 2 (median, 2; range, 1-5), with a mean cavity diameter of 3 (median, 2; range, 1-10) mm. Related features included vitreous seeds in 7 tumors (27%), subretinal seeds in 6 (23%), and subretinal fluid in 13 (50%). Intravenous chemoreduction was used in 23 tumors (88%); intra-arterial chemotherapy, in 2 (8%); and both, in 1 (4%). After treatment, the mean reduction in tumor base was 22% and mean reduction in tumor thickness was 29%. Despite minimal reduction, tumor recurrence was noted in only 1 eye (4%), globe salvage was achieved in 22 (88%), and there were no cases of metastasis or death during 49 (range, 6-189) months of follow-up. CONCLUSION: Despite minimal visible tumor response to chemotherapy, cavitary retinoblastoma displays relatively stable long-term results.
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