Annular Leukocytoclastic Vasculitis: A New Feature of IgA Vasculitis.

BACKGROUND: Annular erythema is a rare manifestation of leukocytoclastic vasculitis. It may be associated with various drugs, infections, malignancies, or systemic diseases.

CASE DESCRIPTION: A 36-year-old woman with no personal medical history presented with annular erythema with target lesions and petechial purpura. The patient had fever and joint arthralgia. A skin biopsy showed leukocytoclastic vasculitis with IgA deposits on direct immunofluorescence. The diagnosis of immunoglobulin A vasculitis with annular leukocytoclastic vasculitis was made. The patient showed global improvement with topical steroids without relapse.

CONCLUSION: An annular variant of leukocytoclastic vasculitis is a rare manifestation of immunoglobulin A vasculitis.

LEARNING POINTS: Annular erythema may reveal an IgA vasculitis.Annular leukocytoclastic vasculitis is a rare manifestation of IgA vasculitis.This presentation is treated with topical steroids.