Official reprint from UpToDate®
www.uptodate.com ©2017 UpToDate, Inc. and/or its affiliates. All Rights Reserved.

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: (picture 4).


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 5). Answer: (picture 6).


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 7). Answer: (picture 8A-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 9). Answer: (picture 10).

To continue reading this article, you must log in with your personal, hospital, or group practice subscription. For more information on subscription options, click below on the option that best describes you:

Subscribers log in here

Literature review current through: Nov 2017. | This topic last updated: Dec 19, 1997.
The content on the UpToDate website is not intended nor recommended as a substitute for medical advice, diagnosis, or treatment. Always seek the advice of your own physician or other qualified health care professional regarding any medical questions or conditions. The use of this website is governed by the UpToDate Terms of Use ©2017 UpToDate, Inc.