PMC9671281_01
Striking linear symmetric purpuric streaks on the proximal extensor sides of both arms. The purpura was not palpable. (A) Purpura formed suddenly, (B) purpura 2 days after episode.
fped-10-959064-g001.jpg
PMC9671281_01_fped-10-959064-g001.jpg
F1
A physical examination revealed remarkable linear, symmetric (meteor shower-like) purpura on both arms (Figure 1).
H&E stain revealed the reticular epidermis is hyperkeratosis and perivascular lymphocytes and a few neutrophils infiltrating in the dermis. (hematoxylin and eosin, original magnification A x40, B x100, C x200, D x400).
fped-10-959064-g002.jpg
PMC9671281_01_fped-10-959064-g002.jpg
F2
A skin biopsy revealed reticular epidermis hyperkeratosis, moderate perivascular lymphocytes, and some neutrophil infiltration (Figure 2).