Gene Expression Profiling As An Adjunctive Measure To Guide The Management Of Indeterminate, High-Risk Choroidal Melanocytic Lesions: A Pilot Study
OCULAR ONCOLOGY AND PATHOLOGY(2019)
Abstract
Purpose: To describe our early experience with gene expression profiling (GEP) assessment for juxtafoveal, subfoveal, and peripapillary indeterminate high-risk melanocytic lesions to assist in making early treatment decisions in patients who did not feel comfortable with either close observation or definitive treatment. Methods: A prospective cohort of patients with indeterminate lesions who underwent GEP were enrolled. Nonparametric statistical analysis was utilized given the small sample size. Results: Fifteen patients were included in this series. Six (40%) were class 1A and 9 (60%) class 1B. Class 1A and 1B lesions had a median of three and four clinical risk factors, respectively (p = 0.27). There was no statistically significant difference for the largest basal diameter between the classes (p = 0.31); however, class 1B lesions were thicker than class 1A lesions (p = 0.03). None of the class 1A lesions showed definite growth or metastasis over a mean follow-up period of 17.1 +/- 1.8 months from fine needle aspiration biopsy. All class 1B patients opted for plaque brachytherapy, and to date none of these patients have developed metastasis, with a mean follow-up of 18.7 +/- 8.4 months. Conclusion: There may be a role for GEP assessment in high-risk, indeterminate, posteriorly located choroidal lesions to assist in treatment planning. (C) 2018 S. Karger AG, Basel
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Key words
Gene expression profiling, Uveal melanoma, Plaque brachytherapy, Fine needle aspiration biopsy, Choroidal nevus
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