Fig 2.

Histopathologic examination found sparse mononuclear cells around the papillary and mid-dermal vascular plexus (A). The mononuclear cells exhibit a slight interstitial and perijunctional pattern (B). Myeloperoxidase labels the infiltrate confirming myeloid lineage (C). Neutrophils are positioned along the dermoepidermal junction. Neutrophilic epitheliotropism (arrows) and superficial vessels are patent without fibrinoid necrosis (D). Some neutrophils extend in single-file configuration between collagen bundles (circled) (E). (A, B, D, and E, Hematoxylin-eosin stain; original magnifications: A, ×40; B, ×100; D and E, ×200; C, myeloperoxidase immunoperoxidase; original magnification: ×40).