pityriasis rubra pilaris

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Related to pityriasis rubra pilaris: pityriasis rosea


any of various skin diseases characterized by the formation of fine, branny scales.
acute lichenoid pityriasis an acute or subacute, sometimes relapsing, widespread macular, papular, or vesicular eruption that tends to crusting, necrosis, and hemorrhage; when it heals it leaves pigmented depressed scars, followed by a new crop of lesions. Progression to the chronic lichenoid form occasionally occurs.
pityriasis al´ba a chronic condition with patchy scaling and hypopigmentation of the skin of the face.
chronic lichenoid pityriasis a chronic brown to red-brown scaly macular eruption, seen mainly on the trunk, with epidermal changes and a perivascular lymphocytic infiltrate. It may arise independently or happen as a progression of the acute lichenoid form.
pityriasis ro´sea a common acute or subacute, self-limited exanthematous disease of unknown etiology. It begins with a solitary red to tan plaque (herald plaque), usually on the trunk, arms, or thighs, which is followed by similar but smaller papular or macular lesions; these later may peel and leave a scaly collarette.
pityriasis ru´bra pila´ris a chronic inflammatory skin disease marked by pink scaling macules and cone-shaped horny follicular papules; it usually begins with severe seborrhea of the scalp and face, associated with keratoderma of palms and soles.
pityriasis versi´color tinea versicolor.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pit·y·ri·a·sis ru·'bra pi·la·'ris

an uncommon chronic pruritic eruption of the hair follicles, which become firm, red, surmounted with a horny plug, and often confluent to form scaly plaques; it is most conspicuously noted on the dorsa of the fingers and on the elbows and knees and is associated with erythema, thickening of the palms and soles, and opaque thickening of the nails.
Farlex Partner Medical Dictionary © Farlex 2012

pi·tyr·i·a·sis ru·bra pi·la·ris

(pit'i-rī'ă-sis rū'bră pī-lā'ris)
An uncommon chronic pruritic eruption of the hair follicles, which become firm, red, surmounted with a horny plug, and often confluent to form scaly plaques.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Treatment options for pityriasis rubra pilaris including biologic agents: a retrospective analysis from an academic medical center.
TABLE Types of pityriasis rubra pilaris (1,4) Type Population Typical course 1 Adult Spontaneous remission within 3 years II Adult Chronic course III Pediatric Spontaneous remission within 1 year IV Pediatric Relapsing and remitting V Pediatric Chronic course VI HIV-infected Variable course HIV, human immunodeficiency virus.
In cases with lichen striatus, pityriasis rubra pilaris, pityriasis rosea and erythroderma nail biopsies did not show any specific nail changes.
Other diseases like lichen planus, erythroderma, lichen striatus, pityriasis rubra pilaris and pityriasis rosea were less common.
The nails in adult type 1 pityriasis rubra pilaris. A comparison with Sezary syndrome and psoriasis.
Juvenile pityriasis rubra pilaris: report of 28 cases in Taiwan.
Histologic criteria for the diagnosis of pityriasis rubra pilaris. Am J Dermatopathol.
Treatment of classic pityriasis rubra pilaris. J Am Acad Dermatol.
Type II pityriasis rubra pilaris associated with Grave's disease-case report.
Systemic sclerosis in a patient with pityriasis rubra pilaris. Pan Afr Med J 2010; 6:6.
Psoriasis was commonly seen in sixteen cases, airborne allergic contact dermatitis was noticed in nine cases, two cases each was seen in scabies and lichen planus, one case each was noticed in ichthyosis, phototoxic dermatitis, pityriasis rubra pilaris, pemphigus foliaceus, dermatophytosis respectively, this correlates with study of Pal and Haroon et.al
Pityriasis rubra pilaris. In: Wolff K, Goldsmith LA, Katz SI et al.