H, This area shows chronic vasculitis with fibrinoid change
in the vessels (hematoxylin-eosin, original magnifications X200 and X400 [inset]).
The histopathology report indicated scarring dermis and mixed cell infiltrate, leucocytoclastic vasculitis, fibrinoid changes
, and some diffusely spread histiocytes.
1) liquefaction degeneration of basal cell layer, 2) fibrinoid changes
in dermal collagen, most marked below the epidermis, and 3) patchy dermal mononuclear infiltrate (particularly periadnexal).