Furuncle/Carbuncle

Paul Auwaerter, M.D.

Furuncle/Carbuncle is a topic covered in the Johns Hopkins ABX Guide.

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PATHOGENS

Staphylococcus aureus
- Cutaneous abscesses may be polymicrobial while true furuncles and carbuncles are almost always due solely to S. aureus.
  - Occasionally due to other pathogens, especially in the immunosuppressed.
- Furuncle pathophysiology differs from routine abscesses (e.g., peri-rectal, breast) as it is based about hair follicle.

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PATHOGENS

Staphylococcus aureus
- Cutaneous abscesses may be polymicrobial while true furuncles and carbuncles are almost always due solely to S. aureus.
  - Occasionally due to other pathogens, especially in the immunosuppressed.
- Furuncle pathophysiology differs from routine abscesses (e.g., peri-rectal, breast) as it is based about hair follicle.

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