common

Pityriasis lichenoides

Pityriasis lichenoides represents a distinct subset of skin disorders that includes pityriasis lichenoides chronica, febrile ulceronecrotic Mucha–Habermann disease, and pityriasis lichenoides et varioliformis acuta (PLEVA).

Underlined words are explained — tap any of them.

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Plain-language summary adapted from Wikipedia. Not medical advice.