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Updated: Feb 17, 2026

Dermoscopy Aids in the Diagnosis of Discoid Lupus Erythematosus
Published on: May 16, 2025
Abstract:
Preview Skin eruptions often occur in annular patterns. Fungal infections are one of the most common causes of ring-shaped eruptions, but annular patterns form in many other skin conditions as well. Dr Bart describes, illustrates, and discusses the causes and treatments of 24 disorders that can result in rings on the skin.
Insights
Skin eruptions can appear in ring shapes, commonly caused by fungal infections but also by 24 other skin disorders. This review details the causes and treatments for various annular skin conditions.
Area of Science:
- Dermatology
- Medical Mycology
- Internal Medicine
Background:
- Annular skin eruptions are a common dermatological presentation.
- Fungal infections are a frequent cause of ring-shaped lesions.
- Numerous non-fungal conditions can also manifest with annular patterns.
Purpose of the Study:
- To provide a comprehensive overview of disorders presenting with annular skin eruptions.
- To illustrate and discuss the causes of 24 distinct conditions resulting in ring-shaped skin lesions.
- To outline the treatment strategies for these varied annular dermatoses.
Main Methods:
- Literature review and synthesis of information on annular skin conditions.
- Descriptive analysis of clinical presentations.
- Illustrative case examples (implied).
Main Results:
- Identification and categorization of 24 disorders causing annular skin eruptions.
- Discussion of differential diagnoses including fungal and non-fungal etiologies.
- Summary of therapeutic approaches for each condition.
Conclusions:
- Annular skin patterns are indicative of a wide range of dermatological conditions beyond fungal infections.
- Accurate diagnosis requires consideration of diverse etiologies.
- Effective management necessitates tailored treatment based on the underlying cause.
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