MLANA and neoplasm: Immunohistochemical analysis of tumor cells indicated the following: HMB-45(+); vimentin(+); smooth muscle actin (SMA)(+); melan-A(+); CK(−); hepatocyte(−); Arg-1(−); GPC-3(−); CK7(−); CK19(−); CK20(−); S-100(−); CD34 blood vessel endothelium(+); and no exact tumor suppository (Figs. 6 and 7).