In the August 14th issue of Cancer Cell, Robertson et al. published a study resulting from a Rare Tumour Project of The Cancer Genome Atlas (TCGA) Project where a molecular taxonomy of four clinical subsets of uveal melanoma (UM) subtypes is identified. (Full title of the study: "Integrative Analysis Identifies Four Molecular and Clinical Subsets in Uveal Melanoma")
You can read more here
http://www.umcure2020.org/en/the-um-2020-project/news-media/groundbreaking-study-uveal-melanoma-has-just-been-published-prestigious-journal-cancer-cell
There was a rather good presentation at the Ocu Mel UK metting this year by Professor Sarah Coupland, Director of NWCR Centre, University of Liverpool
Also note in the Q&A session after where getting a second opinion is discussed.