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.

pityriasis lichenoides

a rare, self-limited skin disease with discolored papular lesions, encompassing a spectrum from pityriasis lichenoides et varioliformis acuta to pityriasis lichenoides chronica.

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.
References in periodicals archive ?
Other conditions that can trigger PR include secondary syphilis (characterized by involvement of the palms and soles, lymphadenopathy, and greater lesional infiltration); seborrheic dermatitis (characterized by greater involvement of the scalp and other hairy parts of the body); nummular eczema (more pruritic); and pityriasis lichenoides chronica, which involves more chronic and relapsing lesions.
Disorders like lupus erythematosus, lichen planus, psoriasis and pityriasis lichenoides chronica were lumped together as papulosquamous disorders.
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.
Pityriasis rosea must be differentiated from dermatophytosis, secondary syphilis, psoriasis, pityriasis lichenoides chronica, erythema annulare centrifugum, and pityriasis rosealike drug eruptions.
Henoch-Schonlein purpura, psoriasis, pityriasis lichenoides, pityriasis rosea, lichen planus, pityriasis rubra pilaris, erythema multiforme, atopic dermatitis, granuloma annulare, and pigmented purpuric dermatosis were the most frequent skin disorders diagnosed dermatopathologically.
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.
Diagnosis: Pityriasis lichenoides et varioliformis acuta (PLEVA, MuchaHabermann disease).
Ersoy-Evans, a dermatologist at Hacettepe University in Ankara, Turkey, described pityriasis lichenoides (PL) as a spectrum with two polar ends: PLC and pityriasis lichenoides et varioliformis acuta (PLEVA).
The differential diagnosis usually includes lichen planus, pityriasis lichenoides et varioliformis acuta (PLEVA), nodular prurigo, reactive perforating collagenosis, and connective tissue diseases such as lupus erythematosus.
The current, generally accepted classification includes three entities: large plaque parapsoriasis (LPP), small plaque parapsoriasis (SPP), and pityriasis lichenoides.