Abstract
Purpose
The purpose of the study was to investigate the outcomes of primary photodynamic therapy (PDT) for small pigmented posterior pole choroidal melanoma.
Patients and methods
Prospective interventional consecutive case series of 15 patients with small pigmented posterior pole choroidal melanoma, who were treated with three sessions of PDT and followed-up thereafter. Risk factors for failure were assessed and outcome measures at presentation were compared to those at last follow-up visit.
Results
Tumor control was achieved in 12 (80%) patients in a median follow-up time of 15 months (mean 14, range 8–18). Three patients failed treatment, diagnosed in a median time of 5 months (mean 4, range 3–6), after first PDT. In all failed cases, lesions were 100% pigmented; de novo melanoma rather than transformed nevi and showed a radial growth pattern rather than increased thickness. All failed cases were subsequently successfully treated with radiotherapy. In this cohort, subretinal fluid (SRF) was significantly reduced (P<0.001), vision did not deteriorate (P=0.11) and even improved in patients with subfoveal SRF at presentation (P=0.018), tumor height significantly decreased (P=0.037) and no complications were recorded.
Conclusion
Primary PDT was found to be a safe and efficient treatment modality for small pigmented posterior pole choroidal melanoma, achieving short-term tumor control in 80% of patients. PDT offers patients the opportunity to preserve vision by avoiding the retinopathy associated with conventional radiation treatments for choroidal melanoma. However, the long-term local control of these tumors remains uncertain.
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Acknowledgements
We would like to thank Sinéad Hanrahan and Nana Gyasi-Twum for their help in conducting the study.
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Fabian, I., Stacey, A., Papastefanou, V. et al. Primary photodynamic therapy with verteporfin for small pigmented posterior pole choroidal melanoma. Eye 31, 519–528 (2017). https://doi.org/10.1038/eye.2017.22
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DOI: https://doi.org/10.1038/eye.2017.22
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