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Image Number 649 (Pityriasis lichenoides et varioliformis acuta)

 
Morphology:
Papules,red

Diagnosis: Pityriasis lichenoides et varioliformis acuta

Site: Arm,upper

Sex: M

Age: 5

Type: Clinical

Description: Erythematous papules

Submitted by: Shahbaz Janjua

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Differential Diagnosis

History: Pityriasis lichenoides is an inflammatory skin disorder characterized by erythematous, desquamative papules and plaques. An acute form, pityriasis lichenoides et varioliformis acuta(PLEVA), and a chronic form, pityriasis lichenoides chronica(PLC), represent the two ends of the spectrum of this disorder. Most commonly seen in children and young adults, its etiology is unknown. Currently there is no standard of treatment for PLC or PLEVA. Broad- and narrow-band ultraviolet B phototherapy, PUVA photochemotherapy, and methotrexate offer the most consistent therapeutic responses.


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