pityriasis lichenoides


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pit·y·ri·a·sis li·che·noi·'des

a self-limited skin disorder of children and adults, usually divided into pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica.
Farlex Partner Medical Dictionary © Farlex 2012

pityriasis lichenoides

A rare idiopathic, self-limiting dermopathy with clinical presentations ranging from papular lesions of acute onset that rapidly evolve into pseudovesicles and central necrosis (pityriasis lichenoides et varioliformis acuta—PLEVA) to small, scaly, benign-appearing papules (pityriasis lichenoides chronica), to a rare febrile ulceronecrotic variant of PLEVA with high fever and marked constitutional symptoms. Lesions may self-involute and resolve completely over weeks, or new lesions may appear in crops, waxing and waning spontaneously for months to years thereafter.

Management
Antibiotics—tetracycline, erythromycin, corticosteroids.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Pityriasis lichenoides chronica (PLC) and pityriasis lichenoides et varioliformis acuta (PLEVA) are the chronic and acute forms, respectively, of pityriasis lichenoides, an uncommon clonal T-cell disorder.
Pityriasis lichenoides chronica###2-3 weeks old###Papulosquamous area###punch
The major histological differential diagnoses were impetiginized spongiotic dermatitis, pityriasis lichenoides, and viral exanthem.
A diagnosis of pityriasis lichenoides et varioliformis acuta (PLEVA) was established.
Pityriasis lichenoides is an uncommon benign skin disorder with two major variants: acute and chronic.Herein, we report the case of an 11-year-old girl with concurrent pityriasisli chenoides chronica and lichen striatus, a previously unreported association.
Atypical cutaneous manifestations, that is, clinical features not surely linked to LB, were 16 (2.27%), in details: 8 cases of morphoea, 2 Raynaud's phenomenon, 1 lichen sclerosus and atrophicus, 1 pityriasis lichenoides, 1 Gilbert's pityriasis rosea, 1 urticaria, 1 anetoderma, and 1 erythema nodosum.
Pityriasis rosea must be differentiated from dermatophytosis, secondary syphilis, psoriasis, pityriasis lichenoides chronica, erythema annulare centrifugum, and pityriasis rosealike drug eruptions.
Bromelain is also effective in treating a skin disorder called pityriasis lichenoides chronica, which is characterized by the appearance of long-lasting, asymptomatic skin lesions.
The man did not respond to a mild topical corticosteroid and an antihistamine (for suspected pityriasis rosea) or to doxycycline (for suspected pityriasis lichenoides).
d) PLEVA (pityriasis lichenoides et varioliformis acuta)