Looking for another cause--even cancer!

My brother now shows ataxia symptoms & I convinced him to see my doc. His were clueless. After exam doc found cancer in his tonsil and referred him to neurologist and throat specialist. Both said cancer in tonsil would not cause Ataxia. Cancer removed - he can now walk a straight line! Boy do I wish I could. We looked for cancer in me 12 yrs ago and found nothing. Although I do have thyroid nodules that would not produce enough cells on needle aspiration to conclude anything. Doc still says I most likely have CA. They havn’t any lab work to conclude this–no gene found yet and 4 MRI’s all normal. Only observation of my symptoms. Any thoughts?

Look into “anti yo antibodies Ataxia” it looks like these show up in some ataxic people before cancer shows up.