Pityriasis rosea
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Summary of Pityriasis rosea
Pityriasis rosea is a benign skin rash but may inflict substantial discomfort in certain cases. Classically, it begins with a single "herald patch" lesion, followed in 1 or 2 weeks by a generalized body rash lasting up to 12 weeks, however usually after 6 - 8 weeks, it typically self-resolves.
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Integumentary system
Pathology
Pigmented skin disorders
Acneiform skin disorders
Papulosquamous and inflammatory skin disorders
Keratotic skin disorders
Vesiculobullous skin disorders
Desquamating skin disorders
Skin integrity disorders
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)
Sarcoptes scabiei (Scabies)
Human herpesvirus 6 (Roseola)
Parvovirus B19
Varicella zoster virus
Measles virus
Rubella virus
Skin neoplasms
Hair and nail disorders
Integumentary system pathology review
AssessmentsPityriasis rosea
Pityriasis rosea
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Flashcards
Pityriasis rosea
13 flashcards
Questions
USMLE® Step 1 style questions USMLE
2 questions
USMLE® Step 2 style questions USMLE
1 questions
Preview
A 19-year-old man comes to the clinic because of a rash that started as a single lesion a few days ago. It has since spread throughout his chest and back. The patient had an upper respiratory infection nine days ago. Physical examination shows salmon pink patches, as seen below. Both VDRL and FTA-AB tests are negative. Which of the following is the most likely diagnosis?
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