Erythema induratum of Bazin
Lobular panniculitis (inflammatory infiltrate predominantly within the fat lobules)
Presence of associated vasculitis
Erythema induratum of Bazin
LEGEND
Fat lobules invaded by a dense infiltrate of lymphocytes and polymorphonuclear cells
Presence of erythrocyte extravasion
Liquefactive fat necrosis leading to loss of adipocyte walls
Erythema induratum of Bazin
Dense lymphohistiocytic and neutrophilic infiltrate
Ghost adipocytes
Erythrocyte extravasation
Erythema induratum of Bazin
LEGEND
Ischemic injury to adipocytes progressing to fat necrosis
Dense lymphohistiocytic and neutrophilic infiltrate
Erythema induratum of Bazin
LEGEND
Presence of vasculitis
Fibrinoid necrosis with destruction of the vessel wall
Extravasated polymorphonuclear cells with leukocytoclasia (nuclear debris)
