_:vb50954521 . _:vb50954521 . _:vb50954521 "url:http://www.cancer.gov/cancertopics/pdq/treatment/intraocularmelanoma/HealthProfessional/page3"^^ . _:vb50954521 . _:vb50954521 "An ocular malanoma that derives_from melanocytes in the uveal tract that results_in_formation_of spindle-shaped cells."^^ . _:vb50954521 . _:vb50954521 .