Leukocytoclastic vasculitis is a single-organ, skin-isolated small vessel vasculitis. It can be a side effect of many common drugs, including biological agents. Unlike with other drugs, leukocytoclastic vasculitis induced by biological agents may have a prolonged latency period. We report the first case of ustekinumab-induced leukocytoclastic vasculitis in a patient with inflammatory bowel disease.

中文翻译：

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克罗恩病患者中与乌斯他单抗有关的白细胞破管性血管炎：第一例病例报告和文献复习。

白细胞碎裂性血管炎是一种单器官，皮肤隔离的小血管性血管炎。它可能是许多常见药物（包括生物制剂）的副作用。与其他药物不同，由生物制剂诱导的白细胞碎裂性血管炎可能会延长潜伏期。我们在炎症性肠病患者中报告了ustekinumab诱导的白细胞碎裂性血管炎的第一例。