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Figure 2: U-serrated pattern in direct immunofluorescence microscopy in epidermolysis bullosa acquisita. Direct immunofluorescence microscopy from perilesional epidermolysis bullosa acquisita skin (staining for immunoglobulin G, ×400). A linear binding along the dermal–epidermal junction is evident. The insert further magnifies the u-serrated binding of the autoantibodies (highlighted in red)

Figure 2: U-serrated pattern in direct immunofluorescence microscopy in epidermolysis bullosa acquisita. Direct immunofluorescence microscopy from perilesional epidermolysis bullosa acquisita skin (staining for immunoglobulin G, ×400). A linear binding along the dermal–epidermal junction is evident. The insert further magnifies the u-serrated binding of the autoantibodies (highlighted in red)