Paraneoplastic Cerebellar Degeneration with Anti-Yo Antibody in a Patient with Fallopian Tube Adenocarcinoma: A Case Report and Literature Review

Paraneoplastic cerebellar degeneration (PCD) typically presents via acute to subacute cerebellar ataxia, dysarthria, and ocular dysmetria, resulting from tumor-induced autoimmunity against the cerebellum. In most cases, symptoms of PCD show months before a diagnosis of cancer. Therefore, it is important for clinicians to investigate the primary tumor in PCD cases in order to treat both conditions concurrently. Herein, we report a case of PCD associated with an anti-Yo antibody, leading to a diagnosis of left fallopian tube adenocarcinoma.