Extravascular necrotizing granuloma is pathologically one of the most characteristic findings of eosinophilic granulomatosis with polyangiitis (EGPA). A 46-year-old man presented to the rheumatology clinic with a 2-week history of arthralgia and 4-day history of dysesthesia of the feet.

中文翻译：

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血管外坏死性肉芽肿：嗜酸性肉芽肿伴多血管炎的诊断线索。

血管外坏死性肉芽肿在病理上是嗜酸性肉芽肿伴多血管炎 (EGPA) 最具特征性的表现之一。一名 46 岁男性因关节痛 2 周和足部感觉异常 4 天到风湿病诊所就诊。