Impetigo
Videos
Notes
Impetigo
Pathology
Keratotic skin disorders
Actinic keratosis
Papulosquamous and inflammatory skin disorders
Atopic dermatitis
Contact dermatitis
Lichen planus
Pityriasis rosea
Psoriasis
Seborrhoeic dermatitis
Urticaria
Skin infections
Cellulitis
Erysipelas
Impetigo
Necrotizing fasciitis
Candida
Malassezia (Tinea versicolor and Seborrhoeic dermatitis)
Pediculus humanus and Phthirus pubis (Lice)
Sarcoptes scabiei (Scabies)
Human herpesvirus 6 (Roseola)
Measles virus
Parvovirus B19
Rubella virus
Varicella zoster virus
Coxsackievirus
Herpes simplex virus
Human papillomavirus
Poxvirus (Smallpox and Molluscum contagiosum)
Varicella zoster virus
Integumentary system pathology review
Acneiform skin disorders: Pathology review
Bacterial and viral skin infections: Pathology review
Papulosquamous and inflammatory skin disorders: Pathology review
Pigmentation skin disorders: Pathology review
Skin cancer: Pathology review
Vesiculobullous and desquamating skin disorders: Pathology review
Viral exanthems of childhood: Pathology review
Assessments
Impetigo
Flashcards
0 / 9 complete
USMLE® Step 1 questions
0 / 1 complete
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
2022
2021
2020
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2016
Bullae p. 487
impetigo p. 491
Bullous impetigo p. 491
Crust (skin) p. 487
impetigo p. 491
Impetigo p. 487
crusts with p. 491
Streptococcus pyogenes p. , 134
sunburn and p. 496
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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