{Reference Type}: Case Reports {Title}: Progressive Ataxia and Palatal Tremor Is Not Associated with IgLON5 Antibodies: Results From Two Cases. {Author}: Mastrangelo A;Giannoccaro MP;Donadio V;Ricciardiello F;Di Laudo F;Palombo F;Liguori R;Rizzo G; {Journal}: Cerebellum {Volume}: 23 {Issue}: 4 {Year}: 2024 Aug 7 {Factor}: 3.648 {DOI}: 10.1007/s12311-023-01647-w {Abstract}: Progressive ataxia and palatal tremor (PAPT) and anti-IgLON5 disease share possible clinical presentations. Furthermore, both have been associated to a tauopathy mainly affecting the brainstem. Nonetheless, anti-IgLON5 antibodies have never been tested in PAPT. We report on two PAPT cases without evidence of anti-IgLON5 antibodies in both CSF and serum. Despite common clinical and pathological characteristics, PAPT and IgLON5 disease are two distinct entities.