The GNAQ in the haystack: intramedullary meningeal melanocytoma of intermediate grade at T9-10 in a 58-year-old woman - Hoffmann, Michael; Seiz-Rosenhagen, Marcel; Mai, Sabine; Wenz, Frederik; Kölsche, Christian; Gebhardt, Christoffer; Giordano, Frank Anton (Journal of neurosurgery, 2016)