Pityriasis rosea
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Pityriasis rosea
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USMLE® Step 1 style questions USMLE
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A 20-year-old man presents to the office for the evaluation of a skin rash. He reports that initially, there was a singular pruritic, salmon-colored patch that appeared on his back ten days ago. After two days, the patch slowly began to clear centrally. Approximately four days after the appearance of the initial rash, multiple similar but smaller lesions started to appear on his back and chest. Review of systems is significant for malaise and headache. Past medical history is significant for a recent cold that resolved spontaneously two weeks ago. Temperature is 37.0°C (98.6°F), pulse is 80/min, respirations are 17/min, and blood pressure is 125/80 mmHg. Physical examination findings are shown.
Reproduced from Wikimedia Commons
Which of the following best describes the progression of this patient’s skin rashes in the next several weeks?
Reproduced from Wikimedia Commons
Which of the following best describes the progression of this patient’s skin rashes in the next several weeks?
Memory Anchors and Partner Content
External References
First Aid
2024
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2021
“Herald patch” (pityriasis rosea) p. 492
Patches (skin)
pityriasis rosea p. 492
Pityriasis rosea p. NaN
Plaques (skin) p. 483
pityriasis rosea p. 492
Scales (skin) p. 483
pityriasis rosea p. 492
Summary
Pityriasis rosea is a common, benign, and self-limiting skin condition that primarily affects young adults. It is characterized by a rash that typically presents as a single, large, scaly, pink or red patch called the "herald patch" on the trunk, followed by the appearance of smaller, similar-appearing patches on the trunk, arms, and legs. Treatment for Pityriasis Rosea involves antihistamines, moisturizing creams and lotions, and mild topical corticosteroids to alleviate symptoms.