OBJECTIVE To determine the efficacy of topical or systemic agents in the treatment and prevention of pityriasis versicolor. DESIGN Systematic review and meta-analysis. DATA SOURCES The Cochrane Skin Group Specialized Register (to June 2008), Cochrane Central Register of Controlled Trials, MEDLINE (1950 to June 2008), EMBASE (1974 to June 2008), LILACS (to March 2009), the gray literature, a...

OBJECTIVE To detect temporal case clustering in patients with pityriasis rosea in different geographic locations. DESIGN Regression analysis of dates on which 1379 patients were diagnosed as having pityriasis rosea in 3 different geographic locations. The control data consisted of dates of diagnosis of patients with psoriasis in the same settings. SETTING Dermatology clinics in Kuwait, Minn...

BACKGROUND Pityriasis rosea is a self-limited inflammatory condition of the skin that mostly affects young adults. Several less common atypical presentations have been reported. CASE PRESENTATION A 6-year old girl with red-brown maculopapular eruption sized 0, 5-1 cm in diameter localized on neck, trunk and popliteal region visited our general pediatric outpatient clinic. The eruption was wid...

Pityriasis amiantacea is a rare cutaneous reaction pattern to various underlying inflammatory diseases of the scalp. The clinical findings are very characteristic but often under-recognized. This condition can lead to scarring alopecia, and can be refractory to conservative treatment. It is therefore important to recognize the condition so that appropriate treatment can be initiated promptly.

BACKGROUND Macrolides are prescribed in the treatment of pityriasis rosea despite conflicting results of the limited number of studies evaluating their role in its treatment. AIM A randomized double-blind placebo-controlled trial was conducted to evaluate the effect of azithromycin on the clinical course of pityriasis rosea. METHODS Seventy patients of pityriasis rosea were given either azi...

BACKGROUND Pityriasis lichenoides (PL) is a lymphoproliferative disease of unknown origin; its diagnosis is based on clinical characteristics and confirmed by histology. OBJECTIVES To describe clinical and histological features of PL in 29 pediatric patients. MATERIALS AND METHODS Retrospective descriptive study of children (patients less than 15 years old) diagnosed with PL between 1986 an...

OBJECTIVE To examine the proposed association between pityriasis rosea and human herpesvirus 7 (HHV-7). DESIGN A retrospective cross-sectional survey. SETTING University medical center in Switzerland. PATIENTS Thirteen patients with pityriasis rosea and 14 persons with normal skin (control subjects). MAIN OUTCOME MEASURES Detection of HHV-7-specific DNA sequences and antigen (85-kd phos...

Pityriasis rosea is an acute, self-limited papulosquamous dermatosis of the trunk and extremities. Many atypical forms of the disease have been reported in the literature [Ahmed et al.: Clin Exp Dermatol 2000;25:624-626; Imamura et al.: Dermatologica 1985;171:474-477]. It is rare to find pityriasis rosea in multiple family members (within a household) at the same time. There have been only 4 re...

BACKGROUND Skin pigmentary changes of pityriasis versicolor may occur as either hyperpigmented or hypopigmented lesions, depending on the outcome of interactions between Malassezia yeasts and the skin, such as lipoperoxidation process, stimulus of inflammatory cell to melanocytes, and increased thickness of keratin layer. OBJECTIVE To investigate skin characteristic factors that enhance the s...

BACKGROUND Pityriasis rosea is an acute, self-limiting disease, probably infective in origin, affecting mainly children and young adults, characterized by distinctive skin eruptions and minimal constitutional symptoms. Both oral Erythromycin and oral Acyclovir have been used in its management. OBJECTIVES To compare the effectiveness of oral Erythromycin and oral Acyclovir in the treatment of ...