Abstract：
BACKGROUND: Immunoglobulin A vasculitis, historically known as Henoch-Schönlein purpura, is a rare form of autoimmune-induced vasculitis most common in children. This disease is characterized by a purpuric rash, arthritis, digestive tract complication, and renal inflammation (Hopkins).
METHODS: We present the case of a 78-year-old man in the emergency department with findings of weakness, abdominal pain, and bloody diarrhea for 3 days and a new-onset bilateral lower extremity rash. Diagnostic imaging and labs diagnosed this patient with immunoglobulin A vasculitis (IgAV) with associated acute kidney injury and abdominal mesenteric edema. Why Should an Emergency Physician be Aware of This? Recognition of IgAV by emergency physicians and assessment of multiple organ involvement is critical to expedite treatment and minimize complications. Particularly, physicians should consider and recognize the increased severity and different presentation of IgAV in adults in comparison with the more widely known manifestation in children.
METHODS: We present the case of a 78-year-old man in the emergency department with findings of weakness, abdominal pain, and bloody diarrhea for 3 days and a new-onset bilateral lower extremity rash. Diagnostic imaging and labs diagnosed this patient with immunoglobulin A vasculitis (IgAV) with associated acute kidney injury and abdominal mesenteric edema. Why Should an Emergency Physician be Aware of This? Recognition of IgAV by emergency physicians and assessment of multiple organ involvement is critical to expedite treatment and minimize complications. Particularly, physicians should consider and recognize the increased severity and different presentation of IgAV in adults in comparison with the more widely known manifestation in children.
摘要：
背景：免疫球蛋白A血管炎，历史上被称为过敏性紫癜，是一种罕见的自身免疫性血管炎，最常见于儿童。这种疾病的特征是紫癜性皮疹，关节炎,消化道并发症，和肾脏炎症（霍普金斯）。
方法：我们介绍了一个在急诊科就诊的78岁男性的虚弱症状，腹痛,和血性腹泻3天，新发双下肢皮疹。诊断成像和实验室诊断该患者患有免疫球蛋白A血管炎（IgAV），并伴有急性肾损伤和腹部肠系膜水肿。为什么急诊医师应该意识到这一点？急诊医师对IgAV的识别和对多器官受累的评估对于加快治疗和最大程度地减少并发症至关重要。特别是,与儿童中更广泛已知的表现相比,成人中IgAV的严重程度增加和表现不同,医师应考虑并认识到.
方法：我们介绍了一个在急诊科就诊的78岁男性的虚弱症状，腹痛,和血性腹泻3天，新发双下肢皮疹。诊断成像和实验室诊断该患者患有免疫球蛋白A血管炎（IgAV），并伴有急性肾损伤和腹部肠系膜水肿。为什么急诊医师应该意识到这一点？急诊医师对IgAV的识别和对多器官受累的评估对于加快治疗和最大程度地减少并发症至关重要。特别是,与儿童中更广泛已知的表现相比,成人中IgAV的严重程度增加和表现不同,医师应考虑并认识到.
