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Ri Antibodies (Nova-1 / ANNA-2)

Includes 1 test

Screening for antibodies against the Ri antigen is used to screen patients with possible paraneoplastic syndrome.

Antibodies against the Ri antigen (also called Nova 1 or ANNA-2 antibodies or specific anti-neuronal nuclear antibodies 2), are rarer than antibodies against the Hu antigen, but can occur in paraneoplastic sensory-cerebral ataxia or even in paraneoplasm encephalomyelitis. The prevalence of the presence of these antibodies is closely linked to small cell lung cancer. Neurological symptoms can precede the diagnosis of cancer by up to five years earlier.

Additional information
Tests includedIncludes 1 test
Sample Blood
Procedure completion test
Step 1

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Step 2


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Step 3

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