What is the role of deep skin biopsy in the diagnosis of necrotizing fasciitis?

Updated: Sep 02, 2020
  • Author: Steven A Schulz, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Excisional deep skin biopsy may be helpful in diagnosing and identifying the causative organisms. [76] Specimens can be taken from the spreading periphery of the necrotizing infection or the deeper tissues, reached only in surgical debridement, to obtain proper cultures for microorganisms.

Avoid doing this procedure from the actual necrosis or granulating center, as many bacteria that neither cause nor add to the infection would be detected.

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