PR is a papulosquamous dermatosis. Classically, the condition presents with a single large lesion (herald patch). Within a few days to a few weeks, multiple additional smaller lesions appear along the ...

Classically, pityriasis rosea begins as an erythematous, scaly patch on the trunk, known as a herald patch. This large lesion is commonly 2–10 cm in diameter, ovoid, erythematous and slightly raised, ...

Pityriasis rosea (PR) is an acute inflammatory skin disorder characterized by erythematous scaling papules and macules. PR lesions are most commonly distributed over the trunk and proximal extremities ...

Pityriasis rosea is a skin condition that causes a “Christmas tree” rash. It starts with one patch, known as the “mother patch,” and branches out with smaller “daughter patches” on other parts of the ...

Before the pandemic began, D.C. dermatologist Adam Friedman routinely treated patients with pityriasis rosea, a temporary but often unbearably itchy skin rash that can last several months. There are ...