Melanoma of the sellar region mimicking pituitary adenoma. - Sidiropoulos M; Syro LV; Rotondo F; Scheithauer BW; Penagos LC; Uribe H; Ramirez Mdel P; Horvath E; Goth M; Kovacs K (Neuropathology : official journal of the Japanese Society of Neuropathology, 2013)