Cerebellar hypermetabolism: an alternative marker for diagnosis of paraneoplastic cerebellar degeneration Doruk Arslan; Fadime Sinem Ard¿c; Ozge Berna Gultekin-Zaim; Murat Tuncel; Neyran Kertmen; Rahsan Gocmen; Fatma Gokcem Yildiz; Ersin Tan;