Impetigo
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Impetigo
Pathology
Pigmented skin disorders
Vitiligo
Albinism
Acneiform skin disorders
Acne vulgaris
Folliculitis
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Hidradenitis suppurativa
Papulosquamous and inflammatory skin disorders
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Keratotic skin disorders
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Pemphigus vulgaris
Desquamating skin disorders
Erythema multiforme
Stevens-Johnson syndrome
Skin integrity disorders
Pressure ulcer
Sunburn
Burns
Frostbite
Skin infections
Cellulitis
Erysipelas
Impetigo
Necrotizing fasciitis
Human papillomavirus
Varicella zoster virus
Poxvirus (Smallpox and Molluscum contagiosum)
Coxsackievirus
Herpes simplex virus
Candida
Malassezia (Tinea versicolor and Seborrhoeic dermatitis)
Pediculus humanus and Phthirus pubis (Lice)
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Human herpesvirus 6 (Roseola)
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Human herpesvirus 8 (Kaposi sarcoma)
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Integumentary system pathology review
Pigmentation skin disorders: Pathology review
Acneiform skin disorders: Pathology review
Papulosquamous and inflammatory skin disorders: Pathology review
Vesiculobullous and desquamating skin disorders: Pathology review
Bacterial and viral skin infections: Pathology review
Skin cancer: Pathology review
Viral exanthems of childhood: Pathology review
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Impetigo
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Impetigo
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USMLE® Step 1 style questions USMLE
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Which of the following pathogenic factors is most likely responsible for this patient’s clinical presentation?
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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
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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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