Impetigo
High Yield Notes
16 pages
Flashcards
Impetigo
of complete
Questions
USMLE® Step 1 style questions USMLE
of complete
Image reproduced from Wikimedia Commons
Which of the following pathogenic factors is most likely responsible for this patient’s clinical presentation?
External References
First Aid
2024
2023
2022
2021
Bullae p. 483
impetigo p. 487
Bullous impetigo p. 487
Crust (skin) p. 483
impetigo p. 487
Impetigo p. 483
crusts with p. 487
Streptococcus pyogenes p. , 134
sunburn and p. 492
Summary
Impetigo is a highly contagious skin infection that is most commonly caused by Group A streptococcus and Staphylococcus aureus bacteria. These bacteria often inhabit the skin and mucous membranes without causing any problems, but under certain conditions they can cause impetigo.
The hallmark sign of impetigo is the presence of honey-colored crusts on the skin. The lesions may be small or large, and may occur anywhere on the body. Impetigo may be accompanied by systemic symptoms such as fever, malaise, and swollen lymph nodes.
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