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JOURNAL OF THE AMERICAN ACADEMY OF DERMATOLOGY
卷 59, 期 6, 页码 943-948出版社
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DOI: 10.1016/j.jaad.2008.07.054
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Background: Pityriasis rubra pilaris (PRP) is a papulosquamous dermatosis uncommon in juvelines. Large-scale studies are limited. especially from Asian countries. Objective: We sought to analyze the clinical manifestations of juvenile PRP in Tainwanese patients and compare them with reported series in the literature. Methods: We diagnosis of juvenile PRP was made based on clinical-histopathologic correlation. The therapeutic response and disease course were followed up by re-examination of the patients or by telephone. Results: A total 447 patients were identified, with histopathologic correlation of the clinical diagnosis of juvenile PRP in 28 cases. A preponderance of Griffiths' type IV PRP (85.7%) rather than type III PRP (14.3%) was found. Palmoplantar hyperkeratosis appeared to be a cardinal feature. In patients with type IV PRP, skin lesions in areas other than the elbows/knees and palms/soles were common. Treatment with systemic acitretin in 6 patients failed to effect a close- or time-dependent improvement. In contrast with other studies, two thirds of our patients with type III and IV juvenile PRP had a protracted course lasting more than 3 years. Limitations: This study was a retrospective review, Patient compliance with treatment was frequently poor. Conclusions: Type IV juvenile PRP predominated but our cases showed a wider distribution of skin lesions than is typically described. When children present with all acute onset of diffuse palmoplantar hyperkeratosis. a diagnosis of juvenile PRP should be considered. Because of the divergent clinical manifestations of juvenile PRP in different populations, there is a need to modify and re-evaluate classification systems based on regional differences. (J Am Acad Dermatol 2008;59:943-8.)
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