Pityriasis rosea is a common, acute, self-limited papulosquamous eruption of possible viral aetiology. The aim of this study was to describe the profile of pityriasis rosea seen at a referral skin centre in Singapore. A retrospective chart review was conducted of all the patients with a diagnosis of pityriasis rosea seen during 1996. There were 368 patients; their ages ranged from 9 months to 8...

The exact aetiology of pityriasis rosea (PR) remains controversial despite research for nearly one and a half century. We report a small-scale qualitative study on the historical aspects of PR. We found that the exact time point for which the rash was first accurately described is not easily determined. There exists considerable overlap between typical and atypical PR. Important clinical signs ...

Background: Pityriasis rosea is an inflammatory skin disorder with a known response to erythromycin. Considering similarities between erythromycin and azithromycin and lesser adverse effects of the latter, in a pilot study, we gave azithromycin to seven patients with pityriasis rosea and observed a noticeable improvement. The aim of this study was to evaluate the efficacy of azithromycin ...

Background: Pityriasis rosea is an acute, inflammatory and self-limited disease, which is characterized by a primary scaly plaque (Herald patch) followed by a generalized, symmetrical papulosqumous eruption (Mostly on trunk and proximal extremities). Objective: To determine the efficacy of erythromycin in the treatment of patients with pityriasis rosea. Patients and Methods: In this doubl...

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.

Over the last few years, dermoscopy has been shown to be a useful tool in assisting the noninvasive diagnosis of various general dermatological disorders. In this article, we sought to provide an up-to-date practical overview on the use of dermoscopy in general dermatology by analysing the dermoscopic differential diagnosis of relatively common dermatological disorders grouped according to thei...

Clinical distinction between pityriasis amiantacea-like tinea capitis and pityriasis amiantacea due to noninfectious inflammatory diseases is a troublesome task, with a significant likelihood of diagnostic errors/delays and prescription of inappropriate therapies. We report a case of pityriasis amiantacea-like tinea capitis with its dermoscopic findings in order to highlight the usefulness of d...

BACKGROUND The study stemmed from an incidental observation of improvement in 2 patients with pityriasis rosea while receiving erythromycin. OBJECTIVE The purpose of the study was to evaluate the efficacy of erythromycin in patients with pityriasis rosea. METHODS A double-blind, placebo-controlled clinical study was performed in an outpatient setting in a major hospital. Ninety patients ove...