Which test is performed to exclude Wegener granulomatosis in Bell palsy (idiopathic facial paralysis) (IFP)?

Updated: Jun 14, 2019
  • Author: Danette C Taylor, DO, MS, FACN; Chief Editor: Selim R Benbadis, MD  more...
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Antineutrophil cytoplasmic antibody (cANCA) levels are indicated, if applicable, to exclude Wegener granulomatosis. In areas where Lyme disease is endemic, serum titers (immunoglobulin M [IgM] and IgG) for Borrelia burgdorferi should be obtained.

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