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Published on: September 19, 2025
Leukocytoclastic vasculitis associated with influenza A virus infection
Hyo Jin Lee1, Dong Hoon Shin, Jong Soo Choi
1Department of Dermatology, Yeungnam University College of Medicine, Daegu, Korea.
Abstract:
Leukocytoclastic vasculitis (LCV) usually presents palpable purpura characterized by inflammation of vessel walls and fragmentation of nuclei. Various conditions can cause LCV, and it can be induced by influenza A virus infection. We report a 2-yr-old Korean girl who presented palpable purpuric and hemorrhagic lesions with fever. She was diagnosed as LCV by skin biopsy, and influenza A virus was isolated from nasopharyngeal swab. She was treated with oseltamivir (Tamiflu®) and prednisolone with dramatic effect of vasculitis and fever.
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