Cowdry bodies

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Cowdry bodies are eosinophilic nuclear inclusions composed of nucleic acid and protein seen in cells infected with Herpes simplex virus, Varicella-zoster virus, and Cytomegalovirus. They are named after Edmund Cowdry.

There are two types of intranuclear Cowdry bodies:

  • Type A (as seen in herpes and VZV infections) [1]
  • Type B (as seen in infection with poliovirus), though it may seem that this is an antiquated and perhaps illusory type.[2]

Light microscopy is used for detection of cowdry bodies.

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