While you say melanoma patients may donate you do not differentiate what kind of melanoma. Choroidal/uveal melanoma, also known as ocular melanoma, is not the same as cutaneous or skin melanoma. Uveal melanoma metastasizes via the blood, making it much like leukemia, lymphoma, and myeloma. I would never donate blood given this fact about my uveal melanoma. If we have Class 2 our risk of mets is 72% within 5 years so while we may be mets free at 1 year out we certainly would not want to donate blood. I think you need to use the terms cutaneous melanoma and uveal/choroidal melanoma rather than lumping them together. They are separate and distinct cancers.