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Figurate erythemas - update and diagnostic approach
Alexander Boehner1, Ruth Neuhauser1, Alexander Zink1
1Department of Dermatology and Allergy Biederstein, Technical University Munich, Munich, Germany.
Summary
Figurate erythemas (FE) are a diverse group of skin conditions characterized by annular lesions. This study proposes a diagnostic algorithm to differentiate various types of FE, aiding in clinical management.
Area of Science:
- Dermatology
- Pathology
Background:
- Figurate erythemas (FE) are a heterogeneous group of skin diseases defined by annular erythematous lesions.
- Diagnosis often relies on clinical examination, histology, and exclusion, presenting diagnostic challenges.
Purpose of the Study:
- To present a diagnostic algorithm for Figurate Erythemas (FE).
- To aid in differentiating various subtypes of FE based on clinical and histological phenotypes and temporal evolution.
Main Methods:
- Review of existing literature and clinical/histological findings.
- Development of a diagnostic algorithm to distinguish between different FE types and their differentials.
Main Results:
- Figurate erythemas encompass several distinct entities, including erythema annulare centrifugum, erythema gyratum repens, erythema migrans, and erythema marginatum.
- The proposed algorithm aids in discriminating FE differentials based on temporal progression and phenotype.
Conclusions:
- A structured diagnostic approach is crucial for accurately identifying Figurate Erythemas.
- Recognizing FE subtypes is important, as some may indicate underlying malignancy, necessitating careful clinical evaluation.
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