Pityriasis lichenoides et varioliformis acuta est morbus systematis immunis. Gravior forma pityriasis lichenoides chronicae est. Morbus insignitur exanthemate et parvis laesionibus in cute. Morbus frequentior in viris, et plerumque in iuvenili aetate. Saepe misdiagnositur ut varicella vel infectio staphylococcica. Biopsia commendatur ad diagnosis.
Pityriasis lichenoides et varioliformis acuta (PLEVA) is a disease of the immune system. It is the more severe version of pityriasis lichenoides chronica. The disease is characterized by rashes and small lesions on the skin.
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PLEVA (pityriasis lichenoides et varioliformis acuta)
Pityriasis lichenoides et varioliformis acuta (PLEVA), etiam notus ut morbus Mucha‑Habermann, est conditio cutis rara, quae papulis rufis‑brunneis diffusis cum squama micae simili in lectionibus maturis characterizatur. Papulae possunt progredi ad vesiculas, pustulas et ulcera, quae lesiones cum pruritu vel sensu ardente coniungi possunt. PLEVA typice afficit truncum et extremitates proximas, praesertim in regionibus flexoribus. Exanthemus saepe recurrit et remittit, cum duratione variabili, interdum usque ad annos. Pityriasis lichenoides et varioliformis acuta (PLEVA), also known as Mucha-Habermann disease, is an uncommon cutaneous inflammatory rash characterized by diffuse red-brown papules in various stages with a mica-like scale on more established lesions. The papules may progress to form vesicles, pustules, and ulcers, and these lesions can be associated with pruritus or a burning sensation. PLEVA favors the trunk and proximal extremities, especially in the flexural regions. This rash tends to relapse and remit with variable duration, sometimes lasting up to years.