Characteristic abnormal signals in medulla oblongata—"eye spot" sign. Issue 3 (June 2015) - Yoshida, Tomokatsu; Mizuta, Ikuko; Saito, Kozo; Kimura, Yasuyoshi; Park, Kwiyoung; Ito, Yasuo; Haji, Shotaro; Nakagawa, Masanori; Mizuno, Toshiki