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. Author manuscript; available in PMC: 2020 Nov 25.
Published in final edited form as: Am J Med Sci. 2020 May 13;360(4):402–405. doi: 10.1016/j.amjms.2020.05.011

FIGURE 2.

FIGURE 2.

Skin biopsy findings. (A) H&E (20×): punch biopsy of skin shows a superficial perivascular infiltrate of entirely lymphocytes (empty arrowhead). (B) H&E (100×): subtle interface change characterized by vacuolar alteration along the dermo-epidermal junction (black arrowhead). (C) H&E (200×): obvious vacuolization along the dermo-epidermal junction (empty arrow) with rare individually necrotic keratinocytes (arrow). (D) Alcian blue (100×): copious mucin (black arrow) situated between bundles of collagen within the reticular dermis.