pityriasis rubra pilaris


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Related to pityriasis rubra pilaris: pityriasis rosea

pityriasis

 [pit″ĭ-ri´ah-sis]
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.

pit·y·ri·a·sis ru·'bra pi·la·'ris

[MIM*173200]
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.

pityriasis rubra pilaris

Etymology: Gk, pityron, bran; L, ruber red, pilus, hair
a chronic inflammatory cutaneous disease characterized by tiny acuminate, reddish brown follicular papules topped by central horny plugs in which are embedded hairs; disseminated yellowish pink scaling patches; and often solid confluent hyperkeratosis of the palms and soles with a tendency to fissuring.
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Pityriasis rubra pilaris

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.
References in periodicals archive ?
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.
Type II pityriasis rubra pilaris associated with Grave's disease-case report.
Systemic sclerosis in a patient with pityriasis rubra pilaris.
Clinical improvement of pityriasis rubra pilaris with efalizumab in a pediatric patient.
8,3,4,9,10] Eight of our patients were diagnosed as pityriasis rubra pilaris which is a common cause of erythroderma.
Familial pityriasis rubra pilaris (adult classic-I): a report of three cases in a single family.
Acquired PPK may be associated with psoriasis, lichen planus, Reiter's syndrome, pityriasis rubra pilaris, Verrucae, fungal infections, keratoderma climactericum, contact dermatitis and also internal malignancy.