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Annular Erythemas and Purpuras.
1Department of Dermatology, Allergology and Venereology, Helsinki University Hospital & University of Helsinki, 00250 Helsinki, Finland.
Life (Basel, Switzerland)
|June 28, 2023
Summary
Annular dermatoses present as ring-like skin lesions spreading outwards. This review focuses on primary annular erythemas and rare annular purpuras, aiding in their diagnosis.
Area of Science:
- Dermatology
- Internal Medicine
Background:
- Annular dermatoses are diverse skin conditions characterized by ring-shaped lesions with outward spread.
- While many conditions can present annularly, some are primarily defined by this morphology.
Purpose of the Study:
- To review the causes of primary annular erythemas.
- To discuss differential diagnoses for annular lesions.
- To cover rare causes of annular purpuras.
Main Methods:
- Literature review of primary annular erythemas.
- Analysis of differential diagnoses for annular skin conditions.
- Review of reported cases of annular purpuras.
Main Results:
- Primary annular erythemas encompass a range of conditions with distinct etiologies.
- Differential diagnosis requires careful consideration of morphology, distribution, and associated symptoms.
- Annular purpuras are rare but important to recognize.
Conclusions:
- Accurate diagnosis of annular dermatoses relies on understanding primary causes and differential diagnoses.
- Distinguishing primary annular erythemas from other annular lesions is crucial for appropriate management.
- Awareness of rare annular purpuras improves diagnostic capabilities.
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