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(A) Lesional skin biopsy specimens reveal a subepidermal blister, Perivascular and interstitial infiltrate of lymphocytes and eosinophils in the upper part of the reticular dermis. (B) Direct immunofluorescence study performed on skin biopsy specimen shows a linear band of immunoglobulin G deposit along the dermoepidermal junction. (C) Direct immunofluorescence study performed on skin biopsy specimen shows a linear band of C3 deposit along the dermoepidermal junction.
