Abstract
Purpose: To report two patients with progressive optic pathway gliomas who had reversible visual loss after treatment with nitrosourea-based chemotherapy. Design: Retrospective case series. Results: Two patients with optic pathway gliomas and progressive visual field loss were treated with nitrosourea-based chemotherapy consisting of 6-thioguanine, procarbazine, 1-(2-chloroethyl)-3-cyclohexyl-1-nitrosourea (CCNU), and vincristine (TPCV). Both patients experienced dramatic and sustained visual improvement after treatment. Conclusion: Patients with progressive optic pathway gliomas may benefit from initial therapy with nitrosourea-based chemotherapy.This treatment might delay or avoid the need for radiation therapy and its associated side effects, especially in younger aged children.
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