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 ...

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 ...

Pityriasis rosea causes a rash that typically clears up on its own without treatment. Usually, a pityriasis rosea rash begins as a large oval patch on the skin. A person may then develop smaller ...

In conclusion, PJPPD is a distinct disease from human pityriasis rosea with different gross and histopathological lesions 3. PJPPD is a self-limiting disease that will spontaneously resolve ...