Pityriasis lichenoides chronica in Adult
The disease is characterized by recurring crops of erythematous papules with central scale commonly seen on the trunk and extremities that can last from months to years. Its acute form is known as pityriasis lichenoides et varioliformis acuta (PLEVA). A rare and more severe ulcerative variant of PLC with systemic symptoms is febrile ulceronecrotic Mucha-Habermann disease. This condition is a dermatologic emergency.
The relationship of PLC and lymphomatoid papulosis and whether PLC is a lymphoproliferative condition with malignant potential remains controversial.
L41.1 – Pityriasis lichenoides chronica
10057001 – Pityriasis lichenoides chronica
Differential Diagnosis & Pitfalls