Fig. 2
From: Macrophage activation syndrome in MDA5 antibody-positive dermatomyositis and COVID-19 infection
Mild vacuolar interface dermatitis within an increase in dermal mucin. Hematoxylin and eosin stain of the skin biopsy. Blue and red arrows in a demonstrate epidermis and dermis, respectively. Yellow star demonstrates the normal pinkish dermis and the red star demonstrates the grayish-purplish mucin deposition. b Demonstrates a magnified view of the black box in a which demonstrates the dermal mucin deposition