PMC5292176_01
Cutaneous biopsy tissue. Skin biopsy specimens showing epidermal detachment with minimal dermal inflammatory infiltrate, festooning of dermal papillae with thickening of basement membrane, and deposits of eosinophilic hyaline material (PAS positive) on the wall of superficial vascular plexus (H&E 100x).
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fig1
The lesions were biopsied: epidermal detachment with minimal dermal inflammatory infiltrate, festooning of dermal papillae with thickening of basement membrane, and deposits of eosinophilic hyaline material on the wall of superficial vascular plexus (Figure 1).