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Clinical microbiology review: Wound, skin, and soft tissue infections

Stephen B Calderwood, MD
Section Editor
Daniel J Sexton, MD
Deputy Editor
Elinor L Baron, MD, DTMH


This 22 year-old woman developed an abscess in a cervical lymph node following severe pharyngitis. What does the Gram stain of the fluid from this abscess show? Question: (picture 1). Answer: (picture 2A-C).


This 52 year-old man developed cellulitis following trauma to his right leg. What does the Gram stain of the purulent drainage from this wound show? Question: (picture 3). Answer: (figure 1).


This swab was obtained from a 43 year-old female, who had an erythematous, draining abdominal wound (and underlying abdominal abscess) after surgery for a ruptured appendix. What does the Gram stain show ? Question: (picture 4). Answer: (picture 5).


This specimen was aspirated from a bullous lesion present on the arm of a 21 year-old male intravenous drug user. What does the Gram stain show? Question: (picture 6). Answer: (picture 7A-D).


A 38 year-old woman developed cellulitis several hours after being bitten by her cat. What does the Gram stain of the purulent drainage from the wound show? Question: (picture 8). Answer: (picture 9).


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Literature review current through: Mar 2017. | This topic last updated: Dec 19, 1997.
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