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Direct immunofluorescence (DIF) analysis of skin biopsy from the patient no.4 showed a linear staining pattern with immunoglobulin G/complement C3 along the dermoepidermal junction.
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fig2
The DIF analysis showed a linear staining pattern with immunoglobulin G/complement C3 along the dermoepidermal junction as shown in Figure 2.
(a) Disseminated bullous pemphigoid and a close up image of bullae on the chest wall in Case no.4 before sitagliptin withdrawal and (b) improvements of skin lesions in this patient after 2 weeks of sitagliptin discontinuation.
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fig3
The clinical pictures before and after DPP4i withdrawal in this patient are depicted in Figure 3.
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