Supplementary Material for: Paraneoplastic neurologic syndrome associated with fallopian tube cancer:A case report

Introduction : Paraneoplastic neurological syndrome (PNS) was identified as a rare and unique clinical complication of primary tumors. Paraneoplastic cerebellar degeneration (PCD), a subtype of PNS, resulting in a series of cerebellar symptoms.
Case presentation: We report a case of an elderly female patient who presented with subacute cerebellar symptoms, positive anti-YO antibody, and elevated CA-125 levels. Further examination revealed a fallopian tube malignancy. After surgery, intravenous immunoglobulin and glucocorticoid treatment, the oncological response was satisfactory, but the neurological symptoms did not improve.
Conclusion: This case illustrates the importance of considering a paraneoplastic etiology in patients with unexplained neurological manifestations and early treatment of the primary malignancy.
Keywords: Paraneoplastic neurological syndromes; paraneoplastic cerebellar degeneration; Fallopian tube cancer