%0 Journal Article %T Cerebellar Ataxia Followed by Stiff Person Syndrome in a Patient with Anti-GAD Antibodies %A Buzzard %A Katherine A. %A Cruse %A Belinda %A Monif %A Mastura %A Seneviratne %A Sinali O. %J - %D 2020 %R https://doi.org/10.1155/2020/8454532 %X Anti-GAD antibody syndrome is a result of the production of antibodies against glutamic acid decarboxylase (GAD), the main enzyme responsible for the production of gamma-aminobutyric acid (GABA). Several neurological manifestations including cerebellar ataxia and stiff person syndrome have been reported in association with anti-GAD antibodies. In this paper, we present a case of a young woman with anti-GAD antibodies who initially presented with cerebellar ataxia followed by stiff person syndrome three and a half years later. Having both cerebellar ataxia and stiff person syndrome is a rare occurrence in anti-GAD antibody syndrome. We emphasise the importance of long-term follow-up of patients with anti-GAD antibody syndrome, as delayed neurological manifestations can occur %U https://www.hindawi.com/journals/crii/2020/8454532/