Abstract

Paraneoplastic neurological syndromes are rare diseases affecting less than 0,01 % of the cancerous patients. Here, we present a rare case of paraneoplastic cerebellar degeneration with anti-Ri antibodies as the presenting manifestation of an occult breast cancer. Our observation emphasizes the importance of the nature of the anti-neuronal antibody and the fluorodeoxyglucose-positron emission tomography to make a definitive diagnosis in patients with subactue onset of neurological deficit suggesting paraneoplastic cerebellar degeneration.

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