WebThe cause of pityriasis rosea is not known, but it is commonly believed to be caused by a virus or bacteria. Some patients may have a cold before the rash. It is usually seen in children, adolescents, and young adults. Most people with the rash are 10 to 35 years of age. The condition is more prevalent in spring and fall. WebPityriasis rosea is a type of skin rash. It is also called Christmas tree rash. It starts with one large round or oval scaly patch. This is called the herald patch. It then causes many more small patches. The rash most often appears on the chest, back, and belly. It can take 1 to 3 months to go away. But once it’s gone, it doesn’t come back.
Pityriasis Rosea - Dermatologic Disorders - Merck …
WebAug 17, 2024 · Pityriasis rosea is a benign inflammatory rash that starts with a single red rash, also known as the "herald patch," which eventually gives way to a larger, similar-looking rash on the trunk ... WebOct 11, 2024 · Pityriasis rosea usually goes away on its own without treatment in 4 to 10 weeks. If the rash doesn't disappear by then or the itching bothers you, talk with your … tod jena
Pityriasis rosea - Diagnosis and treatment - Mayo Clinic
WebFeb 27, 2024 · Neck. Abdomen. Upper arms. Thighs. Pityriasis rosea usually begins with a single scaly plaque (a raised area on the skin) ranging from 2-5 cm in size. This first patch is called a “herald patch,” and it is usually located on the trunk, neck, or upper arms. The herald patch is followed 1-3 weeks later by the development of a widespread rash ... WebJul 18, 2024 · Pityriasis rosea is an acute self-limiting papulosquamous disorder. It is characterized by a herald patch followed by scaly oval patches on the trunk and proximal extremities in a "Christmas-tree" appearance. Pityriasis rosea means rose-colored scale. Pityriasis rosea is also known as pityriasis circinata, roseola annulata, and herpes … WebMar 1, 2011 · Pityriasis rosea is an acute, benign, self-limited skin disease of mostly young adults clinically characterized by multiple, sometimes slightly pruritic, sharply demarcated, oval plaques covered by fine, collarette type scales (Figure 2).The clinically distinctive, multiple, round- to oval-shaped skin lesions predominantly affect the trunk in a Christmas … tod jendges