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12 lip 2024 · Pityriasis rosea typically begins with an oval, slightly raised, scaly patch — called the herald patch — on the face, back, chest or abdomen. Before the herald patch appears, some people have headache, fatigue, fever or sore throat.
Usually you get the rash on your chest and back, but it can appear on the arms or legs. In children, it may appear on the face or scalp. It usually appears in the same place on both sides of the body and may be itchy. On white skin, the spots are pink or red.
1 mar 2024 · Where does pityriasis rosea appear on the body? The rash can develop anywhere on the skin or scalp. However, it usually begins on the chest, abdomen, or back and spreads. As it spreads, it may reach the upper arms or legs. If you have inverse pityriasis rosea, the rash usually develops in the armpits, groin, and sometimes the face or neck ...
1 mar 2024 · Etiology. The exact cause of PR is unknown; however, features like seasonal variation and community clustering suggest that it has an infection-based origin. Infections from viruses, bacteria, and spirochetes, as well as noninfective causes like atopy and autoimmunity, are known causes of PR.
Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch", usually found on the chest, abdomen, or back. The herald patch is followed some time later, typically two weeks or so, by the development of smaller scaly oval red patches, resembling a Christmas tree, ...
A variant called inverse pityriasis rosea can affect the skin on your neck, face, armpits (axillae) and groin, though it isn’t common. Your skin may develop discolored patches (lesions) that look like scales or dry, crinkly paper.
7 mar 2023 · Pityriasis rosea appears mostly on the torso, but it's not uncommon for it to spread around the body. It may appear on the arms, neck and even the scalp. The rash rarely spreads to the face.
