PDF(Pubmed)
Abstract：
Pityriasis rosea (PR), a benign and self-limiting skin disorder, typically manifests as a single initial lesion known as the herald patch. The herald patch is commonly followed by the development of secondary erythematous papules and plaques, aligning with Langer\'s lines to form a specific distribution pattern, resembling a Christmas tree on the back and a V-shaped pattern on the upper chest. Therefore, diagnosing PR may not be difficult based on its typical clinical presentation. In contrast, cases of atypical PR presentation have been reported, encompassing several differential diagnoses. Here, we present a case with multiple herald patches that needed differentiation from ringworm, syphilis, and erythema annular centrifugum. Subsequently, our case was diagnosed with PR, as the patches formed a V-shaped pattern and a Christmas-tree distribution.
摘要：
玫瑰糠疹（PR），良性和自限性皮肤病，通常表现为称为先驱片的单个初始病变。先兆斑块通常伴随着继发性红斑丘疹和斑块的发展，与兰格的线条对齐，形成特定的分布模式，背面像圣诞树，上胸部有V形图案。因此,根据其典型的临床表现诊断PR可能并不困难。相比之下,已经报道了非典型PR表现的病例，包括几种鉴别诊断。这里,我们提出了一个需要与癣区分的多个先驱补丁的案例，梅毒,和红斑环状离心机。随后，我们的病例被诊断为PR,因为补丁形成了V形图案和圣诞树分布。
