Diffuse cerebellar MR imaging changes in anti-Yo positive paraneoplastic cerebellar degeneration.

摘要

A 48 year old lady presented with a month's history of vertigo, nausea, and vomiting. Examination revealed nystagmus, mild limb-clumsiness (predominantly left sided) and mild gait ataxia. MR imaging demonstrated diffuse signal change within the cerebellar hemispheres (most prominent on the left), predominantly affecting the white matter but also the cerebellar cortex (Fig. 1). CSF examination revealed 52 lymphocytes ("bland" on cytology), oligoclonal bands were not detected. The cerebellar findings progressed rapidly and she developed dysarthric speech and marked limb/truncal ataxia. Her symptoms plateaued within 3 months, by which time she was bed-bound. An Anti-Yo antibody was detected in the serum. CT imaging demonstrated an area of abnormal tissue in the left breast; biopsy confirmed breast adenocarcinoma with axillary lymph node spread. She declined repeat cerebral imaging.