Pityriasis rosea

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Pityriasis rosea

Pathology

Pigmented skin disorders

Vitiligo

Albinism

Acneiform skin disorders

Acne vulgaris

Folliculitis

Rosacea

Hidradenitis suppurativa

Papulosquamous and inflammatory skin disorders

Contact dermatitis

Atopic dermatitis

Lichen planus

Pityriasis rosea

Psoriasis

Seborrhoeic dermatitis

Urticaria

Keratotic skin disorders

Actinic keratosis

Vesiculobullous skin disorders

Epidermolysis bullosa

Bullous pemphigoid

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)

Sarcoptes scabiei (Scabies)

Human herpesvirus 6 (Roseola)

Parvovirus B19

Varicella zoster virus

Measles virus

Rubella virus

Skin neoplasms

Vascular tumors

Human herpesvirus 8 (Kaposi sarcoma)

Angiosarcomas

Skin cancer

Hair and nail disorders

Alopecia areata

Telogen effluvium

Onychomycosis

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

Assessments

Pityriasis rosea

Flashcards

0 / 13 complete

USMLE® Step 1 questions

0 / 2 complete

High Yield Notes

6 pages

Flashcards

Pityriasis rosea

of complete

Questions

USMLE® Step 1 style questions USMLE

of complete

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?

External References

First Aid

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“Herald patch” (pityriasis rosea) p. 496

Patches (skin)

pityriasis rosea p. 496

Pityriasis rosea p. 495

Plaques (skin) p. 487

pityriasis rosea p. 496

Scales (skin) p. 487

pityriasis rosea p. 496

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.

Elsevier

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