Which procedures may be useful in the diagnosis of varicella-zoster virus (VZV) infection?

Updated: Feb 15, 2019
  • Author: Wayne E Anderson, DO, FAHS, FAAN; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Lumbar puncture may be helpful if signs suggest myelitis or encephalitis. The cerebrospinal fluid (CSF) shows increased levels of protein and pleocytosis because the inflammatory response involves the leptomeninges. CSF PCR can be used to detect VZV DNA.

Although seldom necessary, biopsy results provide a definitive diagnosis.

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