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Macular lymphocytic arteritis: three cases questioning its classification as primary lymphocytic vasculitis
Caroline Garcia1, Michel Dandurand, Pascal Roger
1Department of Dermatology, University Hospital of Nîmes, Nîmes, France.
Dermatology (Basel, Switzerland)
|December 17, 2013
Summary
Macular lymphocytic arteritis (MLA) is a distinct skin condition characterized by benign rashes. Continued monitoring is advised due to potential vessel obliteration in some patients.
Area of Science:
- Dermatology
- Pathology
- Rheumatology
Background:
- Macular lymphocytic arteritis (MLA), also known as lymphocytic thrombophilic arteritis, is a newly identified clinicopathological entity.
- Its classification as a primary cutaneous lymphocytic arteritis remains debated, with some suggesting it may be a variant of cutaneous polyarteritis nodosa.
Observation:
- This study presents three additional cases of MLA and reviews existing literature.
- The discussion focuses on the nosological classification of this condition.
Findings:
- Clinically, MLA manifests as asymptomatic, bilateral erythematous/hyperpigmented macules, predominantly on the lower legs.
- Histological examination reveals a medium-sized, lymphocytic arteritis in early cutaneous lesions.
Implications:
- Findings support classifying MLA as a chronic, indolent primary lymphocytic cutaneous arteritis.
- Objective obliteration of cutaneous vessels in some cases necessitates ongoing patient monitoring.
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