Photodynamic therapy using talaporfin sodium for grade 2/3 meningiomas: a preliminary study of safety, feasibility, and clinical outcomes

PDT combined with resection is a safe adjunctive strategy for grade 2/3 meningiomas. Our preliminary data suggest that its efficacy is limited in post-radiation recurrences, but it may delay disease progression when applied before RT. PDT should hence be considered as a therapeutic option for grade 2/3 meningiomas.