[Skip to Navigation]
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 35.173.234.169. Please contact the publisher to request reinstatement.
Article
July 1951

METROPOLITAN DERMATOLOGICAL SOCIETY OF LOS ANGELES

AMA Arch Derm Syphilol. 1951;64(1):75-77. doi:10.1001/archderm.1951.01570070078020

This article is only available in the PDF format. Download the PDF to view the article, as well as its associated figures and tables.

Abstract

Parapsoriasis (Pityriasis Lichenoides Chronica, Juliusberg). Presented by Dr. Max Popper. 

DISCUSSION  Dr. Eliot Wolk: I noted that the nails were pretty well pitted, that point suggesting psoriasis. I should like to ask the presenter about that observation and its relationship to the diagnosis.Dr. Max Popper: I have observed the patient only a few weeks. This type of parapsoriasis resembles psoriasis. However, the following differential diagnostic distinctions can be made:In psoriasis the scales are silvery white while in pityriasis lichenoides chronica they are yellowish white. Accordingly, in psoriasis the hyperkeratosis is pronounced while in pityriasis lichenoides chronica it is only moderate.The scales in psoriasis can frequently be lifted as a thin film, while in pityriasis lichenoides chronica the scales are flaky. Accordingly, in psoriasis we find a uniform parakeratotic layer which tends to maintain the cohesion among the keratotic cells while in pityriasis lichenoides chronica parakeratosis is

First Page Preview View Large
First page PDF preview
First page PDF preview
×