Pityriasis rosea
Pityriasis rosea
Pathology
Acneiform disorders
Desquamating disorders
Hair disorders
Infections
Cellulitis
Erysipelas
Impetigo
Necrotizing fasciitis
Bacterial and viral skin infections: Pathology review
Candida
Malassezia (Tinea versicolor and Seborrhoeic dermatitis)
Coxsackievirus
Herpes simplex virus
Human papillomavirus
Poxvirus (Smallpox and Molluscum contagiosum)
Varicella zoster virus
Bacterial and viral skin infections: Pathology review
Pediculus humanus and Phthirus pubis (Lice)
Sarcoptes scabiei (Scabies)
Human herpesvirus 6 (Roseola)
Measles virus
Parvovirus B19
Rubella virus
Varicella zoster virus
Viral exanthems of childhood: Pathology review
Keratotic disorders
Nail disorders
Papulosquamous and inflammatory skin disorders
Pigmented skin disorders
Skin integrity disorders
Skin neoplasms
Key Takeaways
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.