LEMS Patient Positive for Cancer Marker, But Shows No Sign of Tumor

LEMS Patient Positive for Cancer Marker, But Shows No Sign of Tumor

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LEMS Patient Positive for Cancer Marker, But Shows No Sign of Tumor

A woman with Lambert-Eaton myasthenic syndrome (LEMS) twice tested positive for a rare but high-risk blood marker of cancer, called type 2 antineuronal nuclear antibody (ANNA-2), while no tumor was evident, according to a case report. While LEMS often occurs in the context of cancer, repeat screenings over two years failed to identify cancer in the woman. Researchers noted that this may be the first ever report of a LEMS patient who tested positive for…

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