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HU YO and RI Antibodies with reflex to titers

About Test 

Hu anti-neuronal nuclear antibody (anti-Hu) is found in 5-10% of patients with small cell carcinoma of the lung. Purkinje cell (Yo) antibody is found in patients with paraneoplastic cerebellar degeneration and is associated with breast, ovarian, and other gynecologic cancers. Some patients with ovarian cancer have low titers of Yo antibodies in the absence of cerebellar degeneration. Anti-Hu antibodies are associated with paraneoplastic encephalomyelitis and sensory neuropathy. Anti-Ri antibody can be detected in patients with paraneoplastic opsoclonus/myoclonus syndrome. Neoplasms most often associated with anti-Ri include breast cancer, small cell lung cancer, and gynecological cancers.

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