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  • Title: Plasmapheresis and IVIG for Treatment of Non-Tumor Anti-Tr/DNER Antibody-Associated Ataxia: A Case Report.
    Author: Adibi A, Rastegar-Kashkouli A, Yousefi P, Adibi I, Ahmadi E, Naghavi S.
    Journal: Cerebellum; 2024 Oct; 23(5):2208-2213. PubMed ID: 38874737.
    Abstract:
    Autoimmune cerebellar ataxia (ACA) is a condition characterized by progressive ataxia resulting from an immune-mediated attack on cerebellar structures. The presence of anti-Tr/DNER antibodies, strongly associated with Hodgkin lymphoma, has been identified in ACA. However, cases with no underlying malignancy are rare. We report the case of a 49-year-old woman presenting with progressive ataxia, slurred speech, and dizziness over three months. The patient exhibited significant cerebellar symptoms, including dysarthria and limb ataxia, without signs of other systemic illnesses. Comprehensive investigations, including imaging, lumbar puncture, and autoantibody testing, were performed. The cerebrospinal fluid (CSF) sample revealed positivity for Tr/DNER antibodies, leading to a diagnosis of autoimmune cerebellar ataxia. The patient underwent nine sessions of plasmapheresis, followed by six doses of intravenous immunoglobulin (IVIG), resulting in significant clinical improvement. Despite extensive cancer screening, no underlying malignancy was detected, suggesting a non-tumor origin of anti-Tr/DNER antibodies. The patient's gait improved, ataxia resolved, and cerebellar tests normalized following treatment. The patient was further managed with rituximab treatment every six months. This case represents a presentation of anti-Tr/DNER-associated autoimmune cerebellar ataxia without malignancy. The successful treatment with plasmapheresis and IVIG suggests that these interventions may be effective in managing autoimmune cerebellar ataxia associated with anti-Tr/DNER antibodies. Further research is needed to understand the underlying mechanisms of this condition and to determine the optimal treatment strategies.
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