PMC6356047_01
Non-blanching erythematous palpable petechiae and purpura on the right thigh (A) and left arm (B).
gr1.jpg
PMC6356047_01_gr1.jpg
fig1
Non-blanching erythematous palpable petechiae and purpura (Fig. 1) were found on both thighs, both arms, and the lower abdomen on June 16.
Perivascular neutrophilic infiltration with leukocytoclastic debris is seen in the deep dermis (Hematoxylin and eosin stain, X 100) (A). Direct immunofluorescence staining demonstrates granular deposition of immunoglobulin A (B) and complement 3 (C) in dermal blood vessels. Arrows indicate the deposited immunoglobulin A and complement 3, respectively.
gr2.jpg
PMC6356047_01_gr2.jpg
fig2
Direct immunofluorescence (DIF) staining demonstrated granular deposition of immunoglobulin A and C3 in dermal blood vessels (Fig. 2).