๐ ็ธฝ็ฎ้ ๏ฝ ๐ ่ฑๆๅๆ๏ผๆฌ็ฏ๏ผ ๏ฝ ๐ ๅฎๆด็ฟป่ญฏ ๏ฝ โญ ็ฒพ่ฏ็ญ่จ
Vasculitis
Vasculitis
In the case of suspected vasculitis, biopsies for H&E should be taken from a wellestablished purpuric lesion (at least 72 hours old), while biopsies for DIF should be taken from an acute lesion (<24 hours old). IgA vasculitis is more likely to retain positive DIF findings in established lesions, when compared with other forms of vasculitis.