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Paraneoplastic Neurological Syndromes Associated with Ovarian Tumors: A Case Report and Systematic Review
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DOI：10.3390/diagnostics16162549.png)
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Abstract
En 中文
Paraneoplastic neurological syndromes are rare immune-mediated disorders that may represent the first clinical manifestation of an underlying tumor. This report describes a 58-year-old woman with rapidly progressive cerebellar dysfunction and anti-Yo antibodies in serum and cerebrospinal fluid. Definite PNS was diagnosed according to the PNS-Care Score criteria (score: 10/10). Oncological evaluation revealed FIGO IIIC high-grade serous ovarian carcinoma (HGSOC) with extensive peritoneal dissemination. Despite corticosteroids, cytoreductive surgery, and carboplatin–paclitaxel chemotherapy, neurological disability progressed, although tumor control was achieved. A PRISMA-guided review of PubMed and Scopus identified 33 studies of PNSs associated with ovarian tumors published between 2016 and 2026. Anti-NMDAR encephalitis, mainly associated with ovarian teratomas, generally showed favorable recovery, whereas anti-Yo-associated cerebellar degeneration, predominantly linked to epithelial ovarian malignancies, had poor neurological outcomes. Prompt antibody testing, oncological investigation, and multidisciplinary treatment are essential, although anti-Yo-associated neurological deficits may be irreversible.
Keywords:
paraneoplastic neurological syndromes
paraneoplastic cerebellar degeneration
onconeural antibodies
ovarian tumor
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