Extravasated Erythrocytes

Extravasated Erythrocytes                        See DX Path for details of the conditions below

Very prominent in vasculitis

But also seen in Pityriasis rosea, Pigmented purpuric dermatosis and Scurvy

Viral infections, Kaposi's sarcoma and specimen trauma can also be to blame.

Blistering disorders with bleeding into the blisters may also show it in the dermis eg PCT, EBA and bullous pemphigoid.