A 54-Year-Old Woman with Progressive Ataxia

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Kun Huang MD PhD
Robin Parker MD FRCPC
Tabassum Firoz MD FRCPC

Keywords

Abstract

Paraneoplastic cerebellar degeneration (PCD) is a rare but devastating syndrome associated with autoantibodies targeting cerebellar antigens expressed by tumours outside of nervous system. PCD is most often associated with breast and gynecological cancers and can precede clinical manifestations of the cancer. Of the dozen autoantibodies associated with PCD, anti-Yo is the most commonly identified. In this report, we present a case of a woman with progressive cerebellar ataxia and anti-Yo antibody, who has microscopic high-grade serous carcinoma found with empiric total abdominal hysterectomy bilateral salpingo-oophorectomy (TAH-BSO). This case highlights the challenges in diagnosis, difficulty in identifying the occult malignancy, and the need for multidisciplinary collaboration between Internal Medicine, Neurology, Gynecology and Pathology. The literature relating to diagnosis, prognosis and treatment of PCD is also reviewed.
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