<prompt> Paraneoplastic cerebellar ataxia with anti-Yo antibody positivity is seen in:Breast and ovarian malignancyBreast and lung malignancyOvarian and small cell carcinoma lungSmall cell carcinoma lung and hodgkins disease  <response>: Paraneoplastic cerebellar ataxia is associated with 1. Breast and ovarian cancers anti-Yo 2. Small-cell lung cancer anti-PQ type voltage-gated calcium channel 3. Hodgkins disease anti-Tr Ref: Harrison, E-18, P-3336. 