A group of rare disorders of the nervous system that develop in some people who have cancer are known as paraneoplastic syndromes. Paraneolastic syndromes of the nervous system are the most common reported paraneoplasic syndromes but these syndromes can affect other organ systems including hormone, skin, blood and joints.
The signs and symptoms of paraneoplastic syndromes of the nervous system commonly develop relatively quickly, often over days to week. The symptoms vary depending on the body part that is being injured. The signs may include:
The paraneoplastic syndromes are not caused by cancer cells directly disturbing the nerve function or by other complications like infections or treatment side effects. But they occur with cancer as a result of the activation of your immune system. The researchers believe that paraneoplastic syndromes are caused by cancer-fighting abilities of the immune system, particularly antibodies and some white blood cells known as T cells.
To diagnose the problem a general and neurological examination will be conducted by a doctor or neurologist. Tests will be conducted to check the following:
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Read more on Paraneoplastic Syndromes Diagnosis and Prognosis.